The short answer
Building a porch typically costs £3,000–£8,000 in 2026, made up of groundwork and foundations, the structure, the roof, the door and glazing, and finishing. Groundwork and the roof are usually the biggest variables: a level base and a flat roof keep costs down, while deep foundations and a pitched, tiled roof push them up. Material choice — uPVC versus brick — sets the overall band. These are typical illustrations, not quotes — see the main porch cost guide for type-by-type figures.
When you look at the total cost of building a porch, it helps to see where the money goes. The headline figure of £3,000–£8,000 breaks down into distinct stages, and understanding them makes it easier to read a quote and spot what one builder has included that another has left out. This guide sets out the cost components, explains what drives each one, and notes how staying within the size limits avoids planning and building regs. All figures are typical illustrations rather than quotes, and the build should be carried out by an FMB-registered or building-control-approved porch builder.
Build cost components at a glance
- Groundwork & foundations £500–£1,500
- Structure (uPVC or brick) £1,200–£3,500
- Roof (flat to tiled pitched) £600–£2,500
- Door & glazing £800–£2,000
- Finishing & making good £300–£800
- Total typical range £3,000–£8,000
Where the money goes
The total cost of building a porch is made up of five main stages. Groundwork and foundations come first — a level, sound base is straightforward, but sloping ground, drainage or deeper footings add cost. The structure is the biggest single element and depends on material: uPVC frames are cheaper than brickwork. The roof ranges from a simple flat or lean-to design up to a pitched, tiled roof that matches the house. The door and glazing cover the front door, side glazing and any decorative glass. Finishing covers making good where the porch meets the house, plus any electrics.
| Stage | Typical cost | What drives it |
|---|---|---|
| Groundwork & foundations | £500–£1,500 | Ground condition, drainage, depth |
| Structure | £1,200–£3,500 | uPVC vs brick, size |
| Roof | £600–£2,500 | Flat vs pitched tiled |
| Door & glazing | £800–£2,000 | Composite door, decorative glass |
| Finishing | £300–£800 | Making good, electrics |
What pushes the build cost up
- Brick over uPVC — masonry and a bricklayer’s labour cost more than factory-made uPVC. Compare the uPVC and brick guides.
- A pitched, tiled roof — more attractive and substantial than a flat roof, but more materials and labour.
- Difficult groundwork — sloping ground, steps, drainage diversions or deeper foundations.
- Going over 3m² — a larger porch needs planning and building regs sign-off, adding fees and time.
- Electrics and lighting — power, a light or a doorbell brings in an electrician and certification.
How long the build takes
A straightforward uPVC porch can be built in a few days, while a brick porch with foundations and a tiled roof typically takes one to two weeks, allowing for the foundations to cure. Time on site is part of the labour cost, so a simpler design is both cheaper and quicker. For what each stage involves on site, see what is involved in building a porch.
Getting a fair price
Because builders break down their quotes differently, get at least three itemised written quotes and check that each covers the same stages — groundwork, structure, roof, door and glazing, and finishing. This is general information; costs vary with your specific home and the quotes you receive. The build should be carried out by an FMB-registered or building-control-approved porch builder, with any glazed elements fitted by a FENSA or CERTASS registered installer.
Compare porch build quotes
Prices vary between builders for the same porch. Use our service to compare quotes from FMB-registered or building-control-approved porch builders in your area.
Frequently asked questions
How much does it cost to build a porch in 2026?
Building a porch typically costs £3,000–£8,000, made up of groundwork and foundations, the structure, the roof, the door and glazing, and finishing. uPVC porches sit at the lower end and brick porches at the top. These are typical illustrations, not quotes.
What is the biggest cost when building a porch?
The structure is usually the largest single element, especially in brick, followed by the roof and groundwork. A level base and a flat roof keep costs down, while deep foundations and a pitched tiled roof push them up.
How long does it take to build a porch?
A straightforward uPVC porch can be built in a few days, while a brick porch with foundations and a tiled roof typically takes one to two weeks, allowing time for the foundations to cure. See what is involved in building a porch.
Can I keep the build cost down?
Choosing uPVC over brick, a flat or lean-to roof over a pitched tiled one, and keeping the porch within 3m² to avoid planning and building regs all help. A level, sound base also reduces groundwork. Get three itemised quotes to compare like for like.
Sources & further reading
- Planning Portal — permitted development rules for porches
- GOV.UK / Building Regulations Approved Documents — when a porch is exempt
- Federation of Master Builders (FMB) — finding a registered builder and typical project costs
- FENSA / CERTASS — registered installers for glazed porch elements
This is general information, not advice for your specific property or project. Costs, timescales and outcomes vary with your home, the porch you choose and your chosen builder. The build should be carried out by an FMB-registered or building-control-approved porch builder. We are an independent information and introduction service, not a builder.