Heating & Boiler Engineers in Hertfordshire
Family-run heating, plumbing and air-conditioning engineers covering St Albans, Watford, Hemel Hempstead and the surrounding Hertfordshire towns. Gas Safe & OFTEC registered, with over 90% of our work coming from referrals.
Trusted heating engineers across Hertfordshire
From a new Worcester Bosch boiler in St Albans to a full central-heating system in Watford or an air source heat pump near Hemel Hempstead, our engineers deliver work to the highest standard.
Smith's Heating Services is a family-run company of Gas Safe and OFTEC registered engineers, and a Worcester Bosch Gold Accredited Installer since 2003. We install, service and repair gas, oil and LPG heating systems, fit air source heat pumps and air conditioning, and look after the controls that tie it all together.
We believe correct installation is the single most important thing — and the job is not finished until the paperwork is done. That commitment is why over 90% of our work comes from referrals across Hertfordshire and the home counties.
St Albans, Watford & Hemel Hempstead
We work right across Hertfordshire and the surrounding area. Three of the towns we cover most often are below — call us to confirm your postcode.
St Albans
Boiler installation, servicing and repairs, central heating and heat pumps for homes across the St Albans area and its surrounding villages.
Watford
New boilers, power flushing, air conditioning and smart heating controls for properties throughout Watford and nearby towns.
Hemel Hempstead
Gas, oil and LPG heating, Vaillant air source heat pumps and annual servicing for households in and around Hemel Hempstead.
Heating services in Hertfordshire
A complete heating, plumbing and air-conditioning service for Hertfordshire homes and businesses.
Boiler installation
Worcester Bosch gas, oil and LPG boilers, with warranties up to 10 years (gas) and 7 years (oil) from a Gold Accredited Installer.
Learn more →Servicing & repairs
Annual boiler servicing, gas safety certificates and prompt repairs to keep your heating safe and running efficiently.
Learn more →Central heating
New and upgraded central-heating systems, radiators, cylinders and controls designed and fitted to last.
Learn more →Power flushing
Kamco CF90 and Adey MagnaCleanse power flushing using only Worcester Bosch–recommended Sentinel or Adey chemicals.
Learn more →Air source heat pumps
Vaillant aroTHERM heat pumps from a Guild of Master Heat Engineers installer, with help claiming the £7,500 BUS grant.
Learn more →Air conditioning
Bosch Climate range air conditioning — plan your system online with our configurator before booking a survey.
Learn more →Three reasons Hertfordshire homeowners choose us
Done properly
Correct installation is the single most important thing — and the job is not finished until the paperwork is done.
Recommended
Over 90% of our work comes from referrals, built on three generations of family-run, accredited engineering.
Fully accredited
Gas Safe, OFTEC, CIPHE and Worcester Bosch Gold Accredited, with a 24-hour emergency line for urgent breakdowns.
Typical Hertfordshire service charges
All prices are indicative, exclude VAT and are subject to survey. Call the office for a tailored quote.
| Service | From |
|---|---|
| Gas boiler service | £105 + VAT |
| Oil boiler service | £180 + VAT |
| Gas safety certificate | £130 + VAT |
| Unvented cylinder service | £95 + VAT |
| Air source heat pump service (annual) | £250 + VAT |
| Labour (min 1 hr) | £100/hr + VAT |
Hertfordshire heating FAQs
Do you cover all of Hertfordshire?
Yes. We regularly work across Hertfordshire, including St Albans, Watford and Hemel Hempstead, as well as the surrounding towns and villages. Call the office on 01494 328382 to confirm we cover your postcode.
Are your engineers Gas Safe and OFTEC registered?
Yes. Smith's Heating Services is Gas Safe Registered and OFTEC registered, so we can safely install and service gas, oil and LPG boilers throughout Hertfordshire. We are also a Worcester Bosch Gold Accredited Installer.
Can you install an air source heat pump in Hertfordshire?
Yes. As a Guild of Master Heat Engineers approved installer we fit air source heat pumps from the Vaillant aroTHERM range across Hertfordshire, and we can help you claim the £7,500 Boiler Upgrade Scheme (BUS) grant on qualifying installations.
Heating help in Hertfordshire?
From St Albans to Watford and Hemel Hempstead, get a free, no-obligation quote from a family-run team you can trust.