New boiler quotes in Portsmouth.
Three quotes from Gas Safe registered engineers who actually cover your postcode, not a call centre eighty miles away.
- Covering PO1, PO2, PO3, PO4, PO5, PO6 and the wider Hampshire
- Your job reaches them in about 60 seconds
- Three engineers maximum, then it closes
- Every one checked on the Gas Safe Register
Get three Portsmouth quotes.
- Three quotes from Gas Safe engineers in your postcode
- Compare prices and opinions before you commit
- A maximum of three, then it closes
- Free to you, and no obligation
Engineers covering Portsmouth.
Every one checked on the Gas Safe Register before they join.
- Gas Safe registration number verified against the public register
- A registered business with a real address, not a mobile and a van
- Coverage confirmed for the postcode areas they say they work in
- We ask homeowners how the job went, and act on the answer
You can check any engineer's registration yourself at gassaferegister.co.uk before work begins. Ask to see the card. Any decent engineer expects you to.
What a boiler swap usually looks like in Portsmouth.
Portsmouth is the most densely populated city in the United Kingdom, and it is a city of terraces. Census 2021 puts 43 per cent of homes as terraced, the highest share of any large city in the south, with 27 per cent in purpose-built blocks of flats, 17 per cent semi-detached and only 5 per cent detached. The Victorian and Edwardian terraces cover most of Portsea Island: Fratton, Southsea, North End, Copnor, Milton and Eastney. Wikipedia records that the council estates of Buckland, Landport and Portsea replaced terraces destroyed by wartime bombing, and that the first post-war housing was built on the mainland at Paulsgrove, completed in 1953, alongside the inter-war suburbs of Cosham, Drayton and Farlington that were brought into the city between 1920 and 1932.
The two-up two-down and bay-fronted terraces of Fratton, Copnor and North End set the pattern: a combi in the rear kitchen or the back-addition bathroom, flued through the rear wall, with the terminal checked against the neighbour's window across a narrow yard. Older terraces that still have a cylinder and loft tank convert easily to a combi because the mains pressure on Portsea Island is generally good and the pipe runs are short. In the larger Southsea houses now split into flats the flue route is the constraint, and in the estates of Buckland, Landport and Portsea the blocks are often on communal systems. Census 2021 shows 76 per cent of Portsmouth households on mains gas only and 12 per cent electric only.
We deliberately don't put a figure on this page, because nobody can price a boiler from a postcode. The cost calculator will give you a realistic range for a property like yours in under a minute, and three quotes for your actual job give you the real answer.
Getting three quotes matters more on a conversion
On a straight replacement the prices tend to cluster. On a cylinder-to-combi conversion they do not: how the engineer plans to route the pipework, whether a system flush is included and what happens to the cupboard afterwards can each move the number by hundreds. Three quotes is not about haggling. It is about seeing three different opinions on how the work should be done.
Whoever you go with must be Gas Safe registered. It is against the law for anyone else to work on your gas boiler, and you can check any engineer's registration number yourself before they start.
Finding a boiler engineer in Portsmouth
Our engineers cover PO1, PO2, PO3, PO4, PO5, PO6 and the wider Hampshire area, and those codes are examples rather than a limit. Rather than ringing round yourself, you fill in one form and we pass it to up to three Gas Safe registered engineers who work in your postcode. They contact you, they quote, and you decide.
Ask all three the same questions
Is the price fixed or an estimate? Does it include a power flush or just a chemical clean? Is a magnetic filter included, since most manufacturer warranties require one? Who notifies building control? A good engineer in Portsmouth will not mind being asked, and one who bristles has told you something useful.
Water and heating in Portsmouth
Portsmouth Water takes its entire supply from the South Downs chalk, largely through the springs and boreholes at Havant and Bedhampton, and its zone readings for the city fall between roughly 240 and 290 mg/l as calcium carbonate, which is hard. The company's own leaflet on hardness and limescale describes scale forming on heating elements and in hot water systems, so a scale reducer on the cold main to a new combi is normal practice.
Planning, flats and the edges of Portsmouth
Portsmouth City Council designates 30 numbered conservation areas, including Old Portsmouth, Portsea, Gunwharf, The Seafront, Owen's Southsea, East Southsea, The Terraces, Eastney Barracks and Craneswater and Eastern Parade. In those areas a flue terminal on a front elevation may need planning consent as well as building regulations sign-off, and Old Portsmouth and Owen's Southsea contain many listed houses where listed building consent applies to any external flue. The post-war council estates of Buckland, Landport and Portsea include blocks of flats where heating is arranged by the landlord and an individual flat cannot simply have a boiler swapped. Building control is Portsmouth City Council and gas is distributed by SGN.
Areas of Portsmouth this covers
Southsea, Fratton, North End, Copnor, Milton, Eastney, Hilsea, Cosham, Drayton and Paulsgrove, and everywhere else in PO1, PO2, PO3, PO4, PO5, PO6. The districts are Portsmouth itself; a job just outside them still reaches engineers who cover that postcode.
Also covering the area.
Portsmouth questions.
Is the water in Portsmouth hard enough to need scale protection on a new boiler?
Yes. Portsmouth Water draws everything it supplies from the chalk of the South Downs, mainly from the springs at Havant and Bedhampton, and its zone figures for the city sit between about 240 and 290 mg/l as calcium carbonate, which is hard. The company's own hardness leaflet describes limescale forming on kettle elements and in hot water systems, and inside a combi the plate heat exchanger is the first place it settles. Boiler manufacturers generally require a scale reducer or inline inhibitor on the cold main above 200 mg/l, and several make it a warranty condition, so it is fitted as a matter of course.
My terrace in Fratton has the boiler in the back bedroom. Does the new one have to go in the same place?
Not necessarily, but moving it changes the job. In a Portsmouth terrace the boiler is usually either in the rear kitchen or in a first-floor bathroom or box room on the back wall, both of which give a short flue straight out the rear. It can be relocated, for example to free the bedroom, but the new position still needs an outside wall for the flue with the terminal a set distance from the neighbour's windows and the boundary, and the gas, flow and return, and condensate pipes all have to be re-run. Where the yards are narrow, as they are across Fratton and Copnor, the terminal clearance to the house behind is the thing an engineer checks first.
What does a new boiler cost in Portsmouth?
It depends far more on the job than the town. A straight combi-for-combi swap sits at the bottom of the range; a cylinder-to-combi conversion sits well above it, and only an engineer standing in your house can see which one you have. The cost calculator gives you a realistic range in under a minute, and comparing 3 quotes for your actual job gives you the real answer.
Which postcodes in Portsmouth do you cover?
Portsmouth is PO1, PO2, PO3, PO4, PO5, PO6, and we match on the outward code, so a job in PO1 only goes to engineers who have told us they cover PO1. Those districts are the town itself rather than a service boundary. If your postcode isn't listed, enter it anyway: we place jobs across the UK, not only in the towns we have a page for.
How quickly can someone come out in Portsmouth?
Your job reaches engineers covering PO postcodes within about a minute of you submitting it. How soon one of them can actually fit a boiler depends on their diary and on the job, so we don't promise a date we don't control. If your boiler has failed completely, say so on the form and it is flagged as urgent.
Are your Portsmouth engineers Gas Safe registered?
Yes. Every engineer on our network is on the Gas Safe Register and we check the number against the public register before any job is sent to them. It is illegal for anyone else to work on your gas boiler. Ask to see their ID card and check it yourself at gassaferegister.co.uk before work starts.
Do you own the property in Portsmouth?
This is the one thing we have to know before anything else. A boiler replacement is a permanent change to the property, so it has to be authorised by whoever owns it - which means we can only arrange quotes for the homeowner, or for someone acting on the owner's behalf. Landlords are welcome to use the form for a property they let. If you answer no, we stop there rather than pass your details to an engineer who would not be able to take the job.
Three Portsmouth quotes, thirty seconds.
Free, no obligation, and only three engineers ever get your details.