Number 1: Nm Heating Solutions
on GoogleHarrow
Nm Heating Solutions carries out heating engineering work in Harrow, dealing with heating systems for properties across the local area.
Heating engineers in Harrow
The 10 heating engineers from Google's results for Harrow, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
- Boiler service
- £80 – £175annual, including certificate
- Combi boiler replacement
- £2,100 – £4,000like-for-like swap
- Air source heat pump
- £9,000 – £16,000before BUS grant
- Harrow vs UK
- +15%well above the UK median
Number 2: The Happy Heating
on GoogleLondon
Operating in Harrow and surrounding areas, The Happy Heating handles boiler repairs, system servicing, and domestic plumbing tasks. Its engineers carry out fault tracing and heating maintenance across local residential properties.
020 8051 2124 132 Kilburn Ln, London W10 4AJ
Number 3: Peter Brown Plumbing & Heating
on GoogleHarrow
Peter Brown Plumbing & Heating carries out bathroom installations, boiler repairs, and central heating services across Harrow, Watford, and Bushey. Their team fits Nest thermostats and provides general plumbing support.
020 8863 1155 29-31 Frognal Ave, Harrow HA1 2SG
Number 4: Heating Engineers & Boiler Repair in Harrow, HA2,
on GoogleSouth Harrow, Harrow
A 24-hour response team at Heating Engineers & Boiler Repair in Harrow covers boiler breakdowns, central heating installations, and power flushing. The firm handles emergency repairs and routine plumbing work throughout Harrow and Middlesex.
0345 095 0767 131 Roxeth Green Ave, South Harrow, Harrow HA2 0QJ
Number 5: Lhplumbing Harrow
on GoogleHarrow
LH Plumbing Harrow provides domestic plumbing, heating, and electrical engineering services across Harrow, North London, and Hertfordshire. The firm carries out general plumbing maintenance alongside heating work for local homes.
020 8864 2311 130 Vaughan Rd, Harrow HA1 4ED
Number 6: Homecure Plumbers
on GoogleNorthwood, Watford
Homecure Plumbers delivers plumbing repairs, boiler fixes, and planned installations for domestic and commercial clients in Harrow. Its work encompasses resolving burst pipes, fixing leaks, and providing general property maintenance.
020 3504 4000 1st Floor, 5, Century Court, Tolpits Ln, Northwood, Watford WD18 9PX
Number 7: Pimlico Plumbers
on GoogleLondon
Pimlico Plumbers provides bathroom and kitchen fitting, heating engineering, plumbing, and plastering services in London.
020 8108 0808 Pimlico House, 1 Sail St, London SE11 6NQ
Number 8: Boiler Installations Harrow
Harrow
Boiler Installations Harrow carries out boiler fitting, heating upgrades, and repair services for commercial and residential properties in Harrow and London. Its engineers manage full replacements, breakdown fixes, and routine servicing.
Number 9: Harrow Gas Engineers
Harrow
Harrow Gas Engineers delivers 24-hour gas and heating services across the HA3 area. Its team performs new heating equipment installations, boiler repairs, power flushing, and safety inspections for local properties.
Number 10: Be Express
Harrow
BeeXpress supplies boiler repairs, heating servicing, and heat pump installations throughout Barnet. Its engineers address heating issues in period properties and suburban homes, offering same-day and next-day callouts.
What heating engineers charge in Harrow
In Harrow, boiler service typically costs £80 – £175. Labour in Greater London runs 15% above the UK median, which accounts for most of the difference from the same job elsewhere.
How to choose between them
- Check the registration yourself. Gas Safe Register registration is a legal requirement for this work, and the register is public, so it takes a minute to confirm.
- Get three quotes on the same specification. Written down, split into labour, materials and anything structural. Most people compare a total against a total and end up choosing between two different jobs.
- Ask what is not included. Making good, waste removal, scaffolding and VAT are the four that turn a cheap quote into an average one.
- Never pay a large deposit up front. Materials in advance is normal. Half the total before anyone turns up is not.
How this list is ordered
These are the firms from Google's results for "heating engineers harrow". They are ranked on Google rating, online presence and other factors.
Work out the budget first
The figures above are Harrow ranges. These explain what drives them, so you can read a quote properly.
New boiler cost: what a replacement really runs to in 2026
Installed 2026 prices for combi, system and regular boilers, what converting to a combi adds, boiler prices by brand, and the lines a full quote should carry.
Underfloor heating cost per square metre: wet and electric prices
Kit and fitted prices per square metre for wet and electric underfloor heating, new build against retrofit, running costs at the October 2026 price cap, and when approval is needed.
Gas safety certificates: what landlords and homeowners need
Who legally needs a gas safety certificate, what the engineer checks, the 12-month and 28-day rules, what a check costs, and how the rules differ in Scotland, Wales and Northern Ireland.
Heating engineers in Harrow: common questions
Is the heat pump grant still available?
The Boiler Upgrade Scheme grant is paid to your installer, who deducts it from the quote. The installer must be MCS certified for it to apply, so confirm that before signing anything.