Hertfordshire · Heat pump installation

Letchworth Garden City air source heat pumps

MCS certified installation of air source heat pumps for heating and hot water, with the boiler upgrade scheme grant applied for, for Letchworth Garden City and the surrounding area. Call for a fixed-price quote; we reply the same working day.

  • Working out where a cylinder could go
  • Plans to switch to electric heating with a heat pump
  • An oil, LPG or gas boiler near the end of its life

Air source heat pumps for Letchworth Garden City

Looking after your system

A little care keeps the system in better shape. Our advice:

  • Keep radiators clear
  • Let the heat pump run steadily, as set up at handover
  • Ask about the grant before you commit

If you were eligible for a grant, we handle the application and keep you updated, as the installer applies for it.

Have the system serviced regularly. Check the manufacturer’s terms, as they may include servicing conditions.

About our air source heat pumps in Letchworth Garden City

Every installation starts with a heat loss survey. That tells us how much heat the home needs, room by room so the system is sized to match. Sizing by rule of thumb isn’t good enough. The work covers air-to-air heat pumps, air-to-water heat pumps and homes heated by oil, LPG or gas, and common reasons people get in touch are questions about the Boiler Upgrade Scheme and finding a place for the outdoor unit.

Most homes around Letchworth Garden City have space for the outdoor unit, and it needs to meet the MCS noise check to be permitted development.

Refrigerant work is written up in the F-Gas records: what was done, the refrigerant type and any amount added or recovered. Keep the records with the manual and the warranty documents, as a manufacturer or a future engineer may ask to see them.

Place
Letchworth Garden City (SG6, SG7)
Wider area
Hertfordshire
Typical price
£8,000–£16,000 (0% VAT on homes), before the grant
Certified
F-Gas certified company, NICEIC approved, MCS
Quote
Fixed-price quote after a site survey
Call
07833 053749
Last updated
30 October 2026

What owners can safely do

On air conditioning, the filters in the indoor unit are normally the one part owners can clean where the manufacturer’s manual explains how. With the power off, they lift out, can be vacuumed or rinsed and must be fully dry before they go back. On a heat pump, the equivalent is keeping the outdoor unit clear and checking the controls.

Never try to top up, release or handle refrigerant yourself. Under the F-gas rules, engineers need their own qualifications and the company must be certified, and escaping refrigerant can cause cold burns. A suspected leak is our job, not yours.

Air source heat pumps in Letchworth Garden City: the local picture

Letchworth Garden City’s centre falls inside the Letchworth Conservation Area. About 41 listed entries lie within half a mile of central Letchworth Garden City, Town Hall (grade II) among them. Where a home is affected, the outdoor unit position is settled with the planning team at North Hertfordshire council, which typically handles Letchworth Garden City before the heat pump design is finished. Valuation Office Agency council tax records show about 30% of homes in and around Letchworth Garden City date from 1919 to 1939. Homes of that age often have cavity walls that may or may not be insulated, which the survey checks.

If your home is near Letchworth Garden City station and heated by a gas boiler, an air-to-water heat pump can replace it where the survey shows it suits. Live in one of the older houses around St Michael? Expect the survey to look closely at heat loss and at the building’s planning status.

Letchworth Garden City is about 5 miles north-west of Stevenage, in Hertfordshire. Letchworth Garden City gets the same approach as every job we take on: diagnosis first, a fixed price and proper paperwork when we have finished. Our list for Hertfordshire has 381 entries and Letchworth Garden City is among them. London is in our area too, about 34 miles from Letchworth Garden City.

That includes properties on Pix Road, Field Lane and Ridge Road and nearby roads. Jobs in SG6 and SG7 are looked at, quoted and booked the same way as anywhere else. Places around Letchworth Garden City that are also on our list: Letchworth (1 mile east), Willian (1 mile south), Norton (1 mile north-east), Walsworth (2 miles south-west) and Ickleford (2 miles west). Within a short drive, we also cover Stevenage (5 miles south-east), Welwyn Garden City (13 miles south), Harpenden (12 miles south-west) and Hitchin (3 miles south-west).

What’s near Letchworth Garden City

We fit and service air conditioning in homes and premises around Norton School, Three Magnets pub and Church of St Paul. There’s a railway station in Letchworth Garden City itself: Letchworth Garden City station. Other landmarks nearby include Wymondley Castle (2.5 miles south) and Fairfield Hospital (1.8 miles north-west). Not far away are Purwell Ninesprings.

Map of Letchworth Garden City © OpenStreetMap contributors

How it works

Each visit runs to the same pattern: check the plan with you, protect the area, carry out the job, check the system and talk you through it. The visit itself takes from a couple of days to around a week, depending on the system and how much of the heating changes. Send us a few phone photos and we can plan most of the visit to Letchworth Garden City.

  1. We find out about your home and the heating you have now.
  2. We measure heat loss for every room.
  3. We design the system, check the radiators and cylinder and look at the outdoor unit position.
  4. You get a fixed price, with any grant and the VAT set out.
  5. We install, commission and register the system under MCS.

Preparing for the visit

  • Unlock any gate, garage or side passage we need
  • Arrange for someone to be there to let us in
  • Clear the space around the indoor unit, or where it will go

How to get a quote

VAT is set out clearly on every quote, and the rate that applies to your job is stated. VAT can differ between homes and businesses and between kinds of work, so we confirm it in writing rather than guess. To get one, phone 07833 053749 or use the quote form.

Ask for a quote

Read more

What air source heat pumps can’t fix

Some problems need a different service or another trade:

  • Insulation work, such as loft or cavity wall insulation
  • Planning decisions, which rest with the council
  • Any gas work on the existing boiler

Not sure which it is? You can phone 07833 053749 and we will tell you honestly before booking.

What the work covers

  • Radiator systems
  • Underfloor heating
  • Homes heated by oil, LPG or gas
  • Hot water cylinders
  • Air-to-water heat pumps
  • Air-to-air heat pumps

Your questions about air source heat pumps in Letchworth Garden City

Does the Boiler Upgrade Scheme cover homes in Letchworth Garden City?

Yes, if the home and the heat pump meet the scheme’s rules: Letchworth Garden City is in England, where it applies. The grant is £7,500 for an air source (air-to-water) heat pump and £2,500 for an air-to-air system that replaces the existing fossil-fuel heating. The installer applies, and we’re MCS certified.

Is Letchworth Garden City in your area for air source heat pumps?

Yes. We work across London and the South East from our base in East Grinstead, and Letchworth Garden City is part of that. To start, give us a ring on 07833 053749 or drop us a line with a few photos.

How quickly will you reply?

The same working day. Then we agree a date that works for you, with a fixed price before work starts.

Can we book visits on a schedule?

Yes. Maintenance contracts are part of what we do, set at the interval the system and the manufacturer’s terms need. Each visit is written up, with F-Gas records where refrigerant work is involved.

What does an air-to-water heat pump cost?

Expect £8,000–£16,000 for an air-to-water system, with 0% VAT on homes, before the grant is taken off. Where you land depends on the size of heat pump, any radiators that need changing and the hot water cylinder, and air-to-air systems are priced after a survey.

Do you protect the property while you work?

We start with protection: dust sheets over floors and anything close to the work. Holes and fixings are agreed with you, and we clean up afterwards before we leave.

Is a heat pump permitted development?

Under the Planning Portal rules, a heat pump on a house can often be permitted development. Listed buildings are excluded, and listed building consent is separate, so we check for your property.

From one of our customers

“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

F-Gas certified companyRefrigerant work done and recorded properly
NICEIC approvedElectrical work certified
MCS certifiedHeat pump installations
Checkatrade memberVetted trade directory
24/7 emergency lineBased in East Grinstead