Hertfordshire · Heat pump installation
Heat pump installation in Tonwell, Hertfordshire
Air source heat pumps for Tonwell and the surrounding area: a survey or diagnosis, a fixed price, careful work and proper paperwork. Ask us for a fixed-price quote.
- Wanting to stop using oil, LPG or gas for heating
- Deciding on the outdoor unit position
- Checking emitters for a heat pump
Air source heat pumps in Tonwell, done properly
We begin with a room-by-room heat loss survey. It shows how much heat each room needs on a cold day, so the heat pump and the radiators or indoor units can be sized properly. Sizing by rule of thumb isn’t good enough. Common call-outs are for planning and permitted development questions and working out where a cylinder could go, on underfloor heating, hot water cylinders and radiator systems.
Older and listed homes in villages like Tonwell need extra care, because permitted development does not apply within the grounds of a listed building, so consent comes first.
Some manufacturers make regular servicing by a qualified engineer a condition of their warranty. Where yours does, a regular service with us keeps that side in order, and every service is written up.
- Location
- Tonwell (SG12)
- Wider area
- Hertfordshire
- Prices
- Air-to-water £8,000–£16,000 before any grant (0% VAT for homes)
- Quotes
- Fixed, in writing
- Accreditations
- F-Gas certified company, NICEIC approved, MCS
- Call
- 07833 053749
- Reviewed
- 30 October 2026
What affects the cost of air source heat pumps
Some jobs are bigger than they look, and some smaller. The main factors:
- Which make and model is being fitted or worked on
- One-off work versus a regular service cycle
- The pipe route between the units
Every job is different, so we price each one individually. The equipment, how we reach it, the route between units and the work needed all play a part.
What to send for a quote
To help us quote quickly, send us:
- The postcode and whether it’s a home, flat or business
- Wide photos of the room or the existing unit
- The rating plate or label on any existing unit
To get a fixed-price quote, call us on 07833 053749 or fill in the contact form with the address and a few details about the rooms or units involved. Photos help a lot. You will hear back from us the same working day.
How it works
Our engineers arrive at the time agreed with you and run through the plan before anything else. Floors and furniture near the work are covered with dust sheets, and the electrics are made safe before any panel comes off. On site, it takes several days for an air-to-water system with a new cylinder, less for an air-to-air system. Rural lanes and tight entrances are worth mentioning before a visit to Tonwell.
- It starts with a conversation about the home, the existing heating and your plans.
- A heat loss survey works out how much heat each room needs, and we look at the radiators, the cylinder space and where the outdoor unit could go.
- You get a fixed-price quote, with any grant you are eligible for and the VAT explained.
- Fitting day: the outdoor unit is placed, the indoor side connected and the controls set up.
- Commissioning, MCS certification and a handover of the controls finish the job.
Getting ready for the visit
- Tell us about parking and loading
- Dig out any previous service or F-Gas records
- Plan for pets to be kept clear during the visit
Get a fixed-price quote
Every quote shows the VAT clearly, 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 on the quote. For a fixed-price quote, call us on 07833 053749 or fill in the contact form.
Read more
What a heat pump looks like in Tonwell
At about 23 miles from central London, Tonwell sits inside the area we cover across London and the South East.
Every heat pump design starts with a room-by-room heat loss calculation. If your home is listed, like Aston Bury about 4.6 miles north-west, listed building consent comes before any heat pump work.
Tonwell is about 2 miles north-west of Ware, in Hertfordshire. Whatever kind of property you have in Tonwell, we can help with air source heat pumps. We reply to enquiries the same working day and our emergency line runs 24/7. Our Hertfordshire coverage runs to 381 places, and Tonwell is one of them. We also work in London, about 23 miles from Tonwell.
Whether you’re on Ware Road, Temple Lane and Bourne Honour or anywhere close by, we can help. All of SG12 is within our area, from the main roads to the quietest streets. Nearby, we also cover air source heat pumps in Chapmore End (1 mile south), Sacombe (1 mile north), Thundridge (2 miles east), Wadesmill (2 miles east) and Sacombe Green (2 miles north). Within a short drive, we also cover Stevenage (7 miles north-west), St Albans (13 miles south-west), Bishop's Stortford (10 miles east) and Welwyn Garden City (6 miles south-west).
What’s near Tonwell
Around Tonwell, our work takes us to homes and businesses near Robin Hood & Little John pub and Chauncy School, among other places. The closest station to Tonwell is Ware station, about 2.5 miles south-east. Other landmarks nearby include Hertford County Hospital (3 miles south) and Barrowfield (2.7 miles south). The countryside around Tonwell includes King's Meads.
Leave it or put it right?
Replacing a boiler in a hurry when it breaks leaves little time to consider a heat pump. Planning ahead gives time for the heat loss survey, the design and the grant application before you need the heat. Booking before summer means the work in Tonwell is done before the hot weather.
A single unit or a whole estate, we price it on the same basis: the work involved, the access and the equipment. The price is fixed before work begins, with VAT shown clearly.
What you get with us
- MCS certified for heat pumps
- Fixed-price quotes after a survey or pictures
- Emergency calls taken 24/7
- NICEIC approved for electrical work
Towns and villages near Tonwell
Other services in Tonwell
Tonwell questions
Will you come out to Tonwell?
We do. Villages and hamlets get the same service as the bigger towns. Send a few details and photos, and we reply the same working day.
Can I get the Boiler Upgrade Scheme grant in Tonwell?
Tonwell is covered, as the scheme runs across England and Wales. The amount depends on the type of heat pump, and the survey confirms which applies. The installer applies, and we’re MCS certified.
Can landlords and managing agents book you?
Yes. Homeowners, landlords, agents and businesses all book us across London and the South East. Let us know who the records should go to.
How quickly will you reply?
We reply to enquiries the same working day. For a breakdown that cannot wait, call our 24/7 emergency line.
Do you offer maintenance contracts?
Yes. Maintenance contracts are part of what we do, with visits at the interval your system and the manufacturer need. Each visit is recorded, with F-Gas records where refrigerant work is involved.
Do you protect the property while you work?
Protection goes down first: dust sheets over floors and anything close to the work. Holes and fixings are agreed with you, and we clean up afterwards when we finish.
Can I do any of the installation myself?
The refrigerant side has to be done by a qualified engineer working for an F-Gas certified company. That is the law, not just our preference, and manufacturers expect it for their warranty too. We can quote for the whole job, from supply to commissioning.
What the work involves, system by system
Hot water cylinders
Existing cylinders may not be suitable for a heat pump and we tell you if it needs replacing.
Air-to-air heat pumps
Air-to-air heat pumps are now covered by permitted development rules in England, subject to conditions. Cooling-only units are not included and need a check with the council.
A customer’s words
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath