Air Conditioning Installation & Maintenance In Greenwich

Air Conditioning Services in Greenwich

We provide trusted air conditioning installation, maintenance and repairs in Greenwich, London (SE3, SE7, SE9, SE10, SE18) for residential and commercial properties. Our engineers install all major system types and offer long-term support, providing reliable, energy-efficient climate control solutions designed to perform throughout the year.

Whether you are installing a new system for the first time, upgrading existing equipment, or looking to keep a current unit running at its best, we deliver a clear and professional service backed by over 33 years of experience.

Residential Air Conditioning in Greenwich

Blackheath is one of the most genuinely village-like addresses in south east London, with its open heath, Georgian and Victorian properties and a character that feels distinct from the surrounding borough. The historic town centre in SE10 sits within a UNESCO World Heritage Site, which means period properties here come with conservation area considerations that require careful installation planning. Woolwich has changed significantly since the Elizabeth line arrived, with newer apartment developments attracting professional households to an area that is evolving rapidly across the SE18 postcode.

With warm summers and a mix of period and newer homes across the SE3, SE7, SE9, SE10 and SE18 postcodes, air conditioning is a practical and growing investment for homeowners throughout the borough.

We regularly install systems in:

• Bedrooms and master suites
• Living rooms and open-plan spaces
• Home offices and studies
• Loft conversions and extensions
• Basement conversions and lower ground floor spaces
• Garden offices and studios

Benefits for homeowners include:

• Quiet, efficient temperature control
• Improved indoor air quality
• Lower energy costs
• Heating and cooling from one system

Our engineers will assess your property in full and recommend the most suitable system based on room sizes, layout, insulation, building type, and your individual comfort requirements.

 
 
 
 
  EXCELLENT  
  
 Based on 118 reviews 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Steve Lincoln 
 
 
 
  
Great service from everyone at I-HT. From the initial enquiry, quote and installation, everything was brilliant. The installers and electricians did a great job on the hottest day of the year, which included crawling around in our loft which must have been 40c ! They left everything very tidy. We are now enjoying cool air in the long hot summer.
Thanks again.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 James Hague 
 
 
 
  
After thoroughly explaining how it would look both inside and outside the installation was very neatly done with no damage to the decor. We were shown how to use the remote and helped to download the app and shown how to control the unit remotely. We couldn’t be happier with the service
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Tracie Pelham 
 
 
 
  
Really wish I’d had air con installed years ago. Finally went for it after a recommendation from my electrician. Lee came out really quick to do the survey even when in a heatwave. I was offered an installation date quicker than I thought as I was going for a single unit. I was pleasantly surprised with the price too.  Michael was a top installer. Can’t believe how tidy he left it. Was cleaner than when he arrived 🙌 genuinely kind and diligent with his work. Was such a good experience he’s coming back in August to fit an upstairs one. Can’t get a better compliment than that. 10/10 I-HT and the office team. Thanks ☺️ very much
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Mr Squish 
 
 
 
  
I had I-HT install an air conditioning system at home, the guys who came round were great, very punctual and completed the install in around 4 hours and left the place clean and tidy. Installation was extremely neat and professional, and would recommend them over any other.

You may find cheaper quotes, but you do not want to cheap out when it comes to a quality job and on going customer service. On that note, they were not expensive - just a fair price for outstanding work and customer service.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Russell Baker 
 
 
 
  
A lovely, friendly and professional company to deal with and they're local too!!  Easy to book our service with them.  Engineer was on time, rang to say he was on his way as well.  He was efficient, courteous and gave some helpful tips about the air con unit.  No hesitation in using the company again next year for our service.  We'll done I-HT - top marks!!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Catherine Southcott 
 
 
 
  
I am just so impressed with this company.   From the initial site visit with Lee East which was informative, responsive to our requirements and extremely thorough, through to office staff and the installation of our aircon unit by Jim the whole experience has been stress free and excellent.   Lee came within 4 days of an initial enquiry and was very reassuring about what could be installed and where internal and external equipment could go (unlike a previous different company).  He sent a full quote with options for equipment and prices.  We went ahead with I-HT and paid a deposit on the phone and 2 weeks after the initial consultation the technician Jim arrived promptly at 8.30 and completed the install.  He was totally professional, cleaned everything beautifully , explained clearly and easily and how to operate the AC and was a pleasure to have in the house.   I really do recommend the company.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Richard White 
 
 
 
  
Beyond brilliant from first phone call, through installation, and beyond!
I don't have the vocabulary to express just how impressed I am with this company.
No pressure from then when we called, and no pressure after receiving the quote.
Curtis and Mikey turned up at exactly the time given for the installation, and they didn't stop working all day. They didn't even had a lunch break! They wouldn't even let us vacuum after as they didn't want to put us to any trouble!
The installation is perfect and we're so happy.
And the cost was inexpensive compared to other quotes!
Thanks so much to everyone :o)
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Austen Bolitho 
 
 
 
  
Excellent, professional and fast working tradesmen!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Chris Aldridge 
 
 
 
  
Fantastic experience with I-HT for my residential install - I had 8 units installed; 7 in the house and 1 in an external garden room.

My first touch point was with Lee who came out to do a site audit and produce a quote for me. Lee seemed very knowledgeable, gave me some good advice, answered all my questions, and most importantly was incredibly patient while my wife and I debated the correct positioning of air con units in each room for what must have seemed like hours on end.

Lee’s quote was good and he was very responsive while iterating on it and tweaking it.

Electrician (Lewis) also came out to do a site audit. Spent quite a bit of time at the house with me weighing up the options and making a recommendation on the best approach. Again, really seemed to care about doing a decent job (and spoiler alert - he DID do a fantastic job on the day). He even tidied up some of the existing electrical works as he went and left the place looking better than when he started.

Installers Jim and Sam were fantastic. They were incredibly flexible working around our two babies needing naps etc, and they were just nice friendly guys. Jim also kindly moved one of the units after he’d installed it because I changed my mind about the location and refused to complain about this despite me saying it was okay and deserved. Nothing was too much trouble for them.

Received an aftercare call following the install.

The whole experience was just decent from start to end.
  
 
  
 
 
 
   
 
 
 

Commercial Air Conditioning in Greenwich

The O2 Arena on the Greenwich Peninsula is one of the busiest entertainment venues in the world, and the hospitality and events economy it generates is a significant commercial driver for the SE10 area. The World Heritage Site status of the historic town centre supports a strong tourism economy built around the Royal Observatory, the Cutty Sark and the Old Royal Naval College, while Blackheath village has a well-regarded independent food and retail scene. Woolwich town centre is growing rapidly following the Elizabeth line arrival and is one of the most active regeneration stories in south east London.

We design and install commercial air conditioning solutions tailored to the individual needs of Greenwich businesses, whether you operate a hospitality venue, a retail or professional premises or a larger commercial facility across the SE3, SE7, SE9, SE10 or SE18 area.

Commercial customers benefit from:

• Stable indoor temperatures throughout the working day
• Improved air quality for staff and visitors
• Enhanced comfort and productivity
• Efficient performance across multi-room or open-plan environments

We plan every installation around your building layout, operating hours, and occupancy levels to minimise disruption to your business.

Types of Air Conditioning Systems We Install

We supply and install all major air conditioning system types across Greenwich and the surrounding south east London area, including:

Split & Multi-Split Systems

A flexible option for single rooms or multiple areas. Split systems are well suited to individual rooms, while multi-split configurations allow several indoor units to run from a single outdoor unit. Multi-split systems are a popular choice across the larger period properties of Greenwich and Blackheath, as well as the newer apartment developments in Woolwich and Charlton.

Wall-Mounted Units

The most common and cost-effective choice for residential and smaller commercial spaces. Wall-mounted units are efficient, easy to install, and deliver strong airflow without taking up floor or ceiling space.

Ceiling Cassette Units

Fitted discreetly within a suspended ceiling, these units distribute air evenly in four directions. They are well suited to offices, hospitality venues, retail spaces, and larger commercial rooms where balanced airflow and a clean finish are important.

Floor-Mounted Units

A practical solution for rooms with limited wall availability. These units sit low to the ground and provide quick, direct heating and cooling, making them ideal for conservatories, older period properties, and rooms with non-standard layouts. Particularly useful in Greenwich and Blackheath’s older conservation area properties where wall configurations can present challenges.

Ceiling-Mounted Units

Designed for long or narrow spaces where wall and floor mounting is not suitable. These slim units fix directly to the ceiling and deliver strong airflow without compromising the room.

We install trusted brands including Mitsubishi Electric, Daikin, Fujitsu, and Worcester Bosch.

Our Air Conditioning Installation Process

We make air conditioning installation in Greenwich straightforward, transparent, and well managed from start to finish.

1. Site Survey

We assess room sizes, layout, insulation, and airflow requirements before recommending the most suitable system for your property.

2. System Design & Quotation

You receive a clear, itemised quotation with transparent pricing and no hidden fees.

3. Installation

Our F-Gas certified engineers install your system safely and neatly, protecting floors and furnishings throughout the process.

4. Testing & Commissioning

We check airflow, temperature accuracy, noise levels, and overall system performance before we leave.

5. Demonstration

We show you how to operate the system and make the most of its energy-saving and timer functions.

6. Aftercare Support

We remain available for ongoing servicing and maintenance to keep your system performing reliably for years to come.

 
 
 
 
  EXCELLENT  
  
 Based on 118 reviews 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Steve Lincoln 
 
 
 
  
Great service from everyone at I-HT. From the initial enquiry, quote and installation, everything was brilliant. The installers and electricians did a great job on the hottest day of the year, which included crawling around in our loft which must have been 40c ! They left everything very tidy. We are now enjoying cool air in the long hot summer.
Thanks again.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 James Hague 
 
 
 
  
After thoroughly explaining how it would look both inside and outside the installation was very neatly done with no damage to the decor. We were shown how to use the remote and helped to download the app and shown how to control the unit remotely. We couldn’t be happier with the service
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Tracie Pelham 
 
 
 
  
Really wish I’d had air con installed years ago. Finally went for it after a recommendation from my electrician. Lee came out really quick to do the survey even when in a heatwave. I was offered an installation date quicker than I thought as I was going for a single unit. I was pleasantly surprised with the price too.  Michael was a top installer. Can’t believe how tidy he left it. Was cleaner than when he arrived 🙌 genuinely kind and diligent with his work. Was such a good experience he’s coming back in August to fit an upstairs one. Can’t get a better compliment than that. 10/10 I-HT and the office team. Thanks ☺️ very much
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Mr Squish 
 
 
 
  
I had I-HT install an air conditioning system at home, the guys who came round were great, very punctual and completed the install in around 4 hours and left the place clean and tidy. Installation was extremely neat and professional, and would recommend them over any other.

You may find cheaper quotes, but you do not want to cheap out when it comes to a quality job and on going customer service. On that note, they were not expensive - just a fair price for outstanding work and customer service.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Russell Baker 
 
 
 
  
A lovely, friendly and professional company to deal with and they're local too!!  Easy to book our service with them.  Engineer was on time, rang to say he was on his way as well.  He was efficient, courteous and gave some helpful tips about the air con unit.  No hesitation in using the company again next year for our service.  We'll done I-HT - top marks!!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Catherine Southcott 
 
 
 
  
I am just so impressed with this company.   From the initial site visit with Lee East which was informative, responsive to our requirements and extremely thorough, through to office staff and the installation of our aircon unit by Jim the whole experience has been stress free and excellent.   Lee came within 4 days of an initial enquiry and was very reassuring about what could be installed and where internal and external equipment could go (unlike a previous different company).  He sent a full quote with options for equipment and prices.  We went ahead with I-HT and paid a deposit on the phone and 2 weeks after the initial consultation the technician Jim arrived promptly at 8.30 and completed the install.  He was totally professional, cleaned everything beautifully , explained clearly and easily and how to operate the AC and was a pleasure to have in the house.   I really do recommend the company.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Richard White 
 
 
 
  
Beyond brilliant from first phone call, through installation, and beyond!
I don't have the vocabulary to express just how impressed I am with this company.
No pressure from then when we called, and no pressure after receiving the quote.
Curtis and Mikey turned up at exactly the time given for the installation, and they didn't stop working all day. They didn't even had a lunch break! They wouldn't even let us vacuum after as they didn't want to put us to any trouble!
The installation is perfect and we're so happy.
And the cost was inexpensive compared to other quotes!
Thanks so much to everyone :o)
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Austen Bolitho 
 
 
 
  
Excellent, professional and fast working tradesmen!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Chris Aldridge 
 
 
 
  
Fantastic experience with I-HT for my residential install - I had 8 units installed; 7 in the house and 1 in an external garden room.

My first touch point was with Lee who came out to do a site audit and produce a quote for me. Lee seemed very knowledgeable, gave me some good advice, answered all my questions, and most importantly was incredibly patient while my wife and I debated the correct positioning of air con units in each room for what must have seemed like hours on end.

Lee’s quote was good and he was very responsive while iterating on it and tweaking it.

Electrician (Lewis) also came out to do a site audit. Spent quite a bit of time at the house with me weighing up the options and making a recommendation on the best approach. Again, really seemed to care about doing a decent job (and spoiler alert - he DID do a fantastic job on the day). He even tidied up some of the existing electrical works as he went and left the place looking better than when he started.

Installers Jim and Sam were fantastic. They were incredibly flexible working around our two babies needing naps etc, and they were just nice friendly guys. Jim also kindly moved one of the units after he’d installed it because I changed my mind about the location and refused to complain about this despite me saying it was okay and deserved. Nothing was too much trouble for them.

Received an aftercare call following the install.

The whole experience was just decent from start to end.
  
 
  
 
 
 
   
 
 
 

Air Conditioning Maintenance in Greenwich

We provide comprehensive air conditioning maintenance across Greenwich and the surrounding SE3, SE7, SE9, SE10, and SE18 area for both residential and commercial properties. Regular servicing helps reduce running costs, improve efficiency, and prevent unexpected breakdowns before they become costly.

A maintenance visit typically includes:

• Filter and coil cleaning
• Refrigerant pressure checks
• Temperature and airflow testing
• Electrical inspections
• Performance and safety checks
• F-Gas compliance assessments

Annual servicing is recommended for most residential systems, with more frequent checks for busy commercial environments.

Air Conditioning Repairs in Greenwich

If your system develops a fault or is no longer performing as it should, our engineers provide fast and reliable air conditioning repairs across Greenwich and the surrounding SE3, SE7, SE9, SE10, and SE18 area.

Common issues we repair include:

• No cooling or heating
• Refrigerant gas leaks
• Unusual noises or vibrations
• Reduced airflow
• Fault codes and sensor issues
• Thermostat faults

We diagnose faults clearly, explain the available repair options, and complete work using manufacturer-approved parts wherever possible.

F-Gas Certification & Compliance

Under UK F-Gas legislation, any engineer handling refrigerant gases must hold a valid F-Gas certification. All of our engineers are fully certified and compliant, meaning every installation, service visit and repair we carry out in Greenwich meets the required legal and safety standards, whether that is a conservation area property in the UNESCO World Heritage Site or a newer apartment in Woolwich.

What F-Gas certification means for you:

• Your installation is carried out legally and to a regulated standard
• Refrigerant gases are handled, recovered and disposed of correctly
• Your system warranty remains valid
• You have full peace of mind that the work meets current UK regulations

We are happy to provide documentation of our F-Gas certification on request. You can also verify engineer certification through the Refcom register or the relevant accreditation body.

Areas Within Greenwich We Cover

We provide air conditioning installation, maintenance, and repairs across all areas of the Royal Borough of Greenwich, including:

• Greenwich Town Centre
• Blackheath
• Woolwich
• Charlton
• Eltham
• Kidbrooke
• Plumstead
• Abbey Wood
• Thamesmead
• Lee
• Mottingham
• New Eltham

Greenwich – Nearby Areas We Cover

Alongside the Royal Borough of Greenwich, we also provide air conditioning installation, maintenance, and repairs in the surrounding areas of south east London, including:

• Lewisham
• Southwark
• Tower Hamlets
• Bexley
• Bromley
• Deptford
• New Cross
• Catford
• Erith
• Sidcup

Get a Quote

If you need air conditioning services in Greenwich or the surrounding south east London area, including installation, maintenance, or repairs, contact us to arrange a site survey or request a quote. We provide honest advice and tailored solutions for residential and commercial properties across the SE3, SE7, SE9, SE10, and SE18 area.