Hertfordshire · Heat pump installation
Air Source Heat Pumps in Todd's Green
Air source heat pumps for Todd's Green and the surrounding area: a survey or diagnosis, a fixed price, careful work and proper paperwork. Ask us for a fixed-price quote.
- Ageing boilers that will need replacing
- Finding a place for the outdoor unit
- Moving away from fossil-fuel heating
Air source heat pumps in Todd's Green
In England, an air source heat pump on a house can often go in under permitted development rights. Conditions include a maximum outdoor unit size of 1.5 m³, compliance with MCS 020(a), use for more than cooling alone and a site outside the curtilage of a listed building. We look at the planning position for your home during the survey. If the problem is deciding which kind of heat pump suits the home and radiators that may be too small for a heat pump, we can help.
In a place like Todd's Green, some homes are listed, because permitted development does not apply within the grounds of a listed building, so consent comes first.
Warranty periods vary by brand and by product. Daikin, for instance, gives a standard 2 years on split air conditioning, with longer extensions only on its air-to-water heat pumps. Whatever the brand, the manufacturer’s terms are explained on your quote.
- Where
- Todd's Green (SG1)
- Wider area
- Hertfordshire
- Pricing
- Fixed after a survey or pictures
- Guide price
- £8,000–£16,000 before the grant, 0% VAT on homes
- Approvals
- F-Gas certified company, NICEIC approved, MCS
- Telephone
- 07833 053749
- Checked
- 30 October 2026
Landlords, agents and facilities managers
Bigger systems bring extra duties: systems with an effective rated output over 12 kW need a TM44 inspection by an accredited energy assessor at least every 5 years. We can arrange it, prepare the system for it and fix what it finds.
Keeping records across a portfolio is half the battle. Each visit is written up, with F-Gas records wherever refrigerant work is involved, ready for a tenant, a buyer or an inspection.
What a heat pump looks like in Todd's Green
In the mile around Todd's Green’s centre, 2 conservation areas have been designated. About 10 listed entries lie within half a mile of central Todd's Green, Thatched Cottage (grade II) among them. For a heat pump, permitted development does not apply within the grounds of a listed building, and in a conservation area the outdoor unit can’t go on a wall or roof facing a road, so we check with the planning team at Stevenage council, which typically handles Todd's Green where needed. Census 2021 figures found about 40% of households in terraced houses. Shared walls keep a terrace’s heat loss down, while gardens next door make the noise check on the outdoor unit important.
With Knebworth House about 3.5 miles south, it’s worth asking whether your own home is listed before planning a heat pump. If your home is one of the older properties near Church of St Mary the Virgin, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
Todd's Green is about 2 miles north-west of Stevenage, in Hertfordshire. From the centre of Todd's Green to the outskirts, our engineers cover air source heat pumps, from a single room to a whole building. Our list for Hertfordshire has 381 entries, and Todd's Green is one. You can also see our page for London, about 30 miles away.
All of SG1 is within our area, from the main roads to the quietest streets. Places around Todd's Green that are also on our list: Lower Titmore Green (1 mile west), Titmore Green (1 mile west), Little Wymondley (1 mile north-west), Graveley (1 mile north-east) and Great Wymondley (1 mile north). Within a short drive, we also cover Hemel Hempstead (15 miles south-west), St Albans (13 miles south), Welwyn Garden City (9 miles south) and Harpenden (9 miles south-west).
Local landmarks in Todd's Green
We fit and service air conditioning in homes and premises around Hermit of Redcoats pub and Graveley Primary School, among other places. The closest station to Todd's Green is Stevenage station, roughly 1.7 miles south-east. Other landmarks nearby include Lister Hospital (0.6 miles east) and Stevenage Museum (1.9 miles south-east). The countryside around Todd's Green includes Purwell Ninesprings.
When something else is needed
A few issues sit outside what this work can do:
- Any gas work on the existing boiler
- A grant for a home that doesn’t meet the scheme rules
- Draught-proofing and insulation upgrades
If in doubt, ring 07833 053749 or write to us at info@aircondoctor.co.uk and we will say what we think.
Parts of the system we cover
- Air-to-air heat pumps
- Air-to-water heat pumps
- Homes heated by oil, LPG or gas
- Radiator systems
- Hot water cylinders
- Underfloor heating
How the job changes from property to property
Outdoor unit position and planning
Under permitted development, the outdoor unit must be 1.5 m³ or less and must meet MCS 020(a) and not be used solely for cooling. It can’t be within the curtilage of a listed building.
Air-to-air heat pumps
The £2,500 grant for air-to-air applies only when the system replaces the fossil-fuel heating and covers the whole home’s demand. It must be installed by an MCS certified installer and be in a home.
What happens on the day
Wherever the system can be run before we leave, we run it and check it in operation. Then we show you what we have done and answer any questions, and anything that needs attention later is pointed out. All told, the work takes a few days for most air-to-water installations, with air-to-air systems often quicker. For a place like Todd's Green, the timing is set with you and the travel is our side of the planning.
- It starts with a conversation about the home, the existing heating and your plans.
- On the visit we calculate what every room loses on a cold day, then check the radiators, room for a cylinder and outdoor unit options.
- The price comes back fixed and in writing, with the grant and VAT shown line by line.
- Installation covers the outdoor unit, the indoor connections and the controls.
- Once it’s running correctly, the MCS certificate is issued and we show you the settings.
Preparing for the visit
- Tell us about parking and loading
- Let us know where the consumer unit is
- Tell us about any building rules, permits or sign-in
Ask for a quote
Some jobs can be priced from pictures, while others need a survey. Multi-room systems, commercial buildings and anything with a long or hidden pipe route are normally surveyed first. Either way, you get a fixed price before any work is booked.
Advice
Todd's Green questions
Is the heat pump grant available in Todd's Green?
Todd's Green is in England, where the Boiler Upgrade Scheme runs. Whether your home qualifies, and for how much, depends on the type of heat pump and the heating it replaces. You don’t apply yourself: the MCS certified installer does, which is us.
Is Todd's Green within the area you cover?
Yes. Todd's Green is within the area we cover across London and the South East. Visits to smaller places are planned so the engineer arrives with what the job needs.
Which type of heat pump is right for my home?
It depends on your home, your heating and whether you want cooling. Air-to-water can attract a £7,500 grant where eligible; air-to-air only qualifies for £2,500 under strict conditions. We explain the options after the survey.
Can we book visits on a schedule?
Yes. We offer maintenance contracts, set at the interval the system and the manufacturer’s terms need. Each visit is written up and F-Gas records kept where they apply.
Do you work on systems someone else installed?
Yes. Systems fitted by other companies are fine from all the leading brands. Send us the make and model, and any records you have.
Why use an F-Gas certified company?
Certification shows a business is approved to work on systems that hold F gas refrigerant. In Great Britain, that certification is a legal requirement, not an optional extra, and AirCon Doctor is certified.
Which brands do you work with?
We install and work on the leading makes, from Mitsubishi Electric, Daikin and Fujitsu to Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Send us the make and model if you have it.
Nearby places to Todd's Green
What else we do in Todd's Green
What a customer said
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead