In short: timber frame is usually a little cheaper (around 8–15% on a like-for-like spec) and much faster to get weathertight, with strong insulation. Brick and block wins on durability, sound insulation and thermal mass, and is the natural choice where you need to match a traditional or conservation-area property. Many UK homes combine both — a timber frame behind a brick outer skin — so bricklayers are involved either way.
Brick and block or timber frame is one of the first big decisions on a new build, and it comes up on larger extensions too. We build in brick and block, but this is a fair comparison of both, because the right answer depends on your budget, your programme and how the house needs to look and perform.
The quick verdict
If speed and energy performance top your list and the budget is tight, timber frame is worth serious thought. If durability, sound insulation and matching a traditional setting matter most, brick and block is hard to beat. On many projects the two are closer than people expect — and are often combined.
Cost and speed compared (2026)
| Factor | Brick & block | Timber frame |
|---|---|---|
| Typical build cost per m² | Baseline | ~8–15% lower like-for-like |
| Speed to weathertight | Slower | 30–40% faster on site |
| Design life | 100+ years | ~80–120 years |
| Weather sensitivity in build | More weather-dependent | Frame goes up quickly, then dried in |
Cost figures move with the market and the spec, so treat them as a guide. Timber's saving can narrow once the brick outer skin and finishes are added.
Where brick and block wins
- Durability — masonry shrugs off knocks and lasts generations with little attention.
- Sound — the mass of block gives better sound insulation between and within homes.
- Thermal mass — brick and block store heat, evening out temperature swings and helping in summer.
- Matching — for extensions, conservation areas and traditional estates, brick is what ties the building into its surroundings.
Where timber frame wins
- Speed — factory-made panels go up fast and get you weathertight sooner.
- Energy — it is easier to hit low U-values, as insulation sits within the frame.
- Lighter loads — a lighter structure can mean simpler foundations on some sites.
- Floor area — thinner walls can give slightly more internal space for the same footprint.
The trade-offs to weigh with timber are careful moisture and vapour detailing, and getting the party-wall and acoustic details right.
Most homes actually use both
This is the part people miss: a large share of timber frame houses are finished with a brick outer skin, so they look exactly like a masonry house from the street. The structural frame is timber, but the face you see is brickwork, laid by bricklayers. So the choice is often less “brick or timber” and more “what sits behind the brick”. Either way the brickwork needs laying well and, on an extension, matching the existing house.
Which for an extension?
For most extensions we would build in brick and block, because it matches the existing house, ties cleanly into the original wall and keeps the property consistent — see extension brickwork and how foundations differ in our extension foundations guide. Timber frame has its place on new builds and some larger projects, and we are happy to talk it through.
This is a general comparison for UK homeowners; the right system for your project depends on your site, budget, programme and design. Cost figures are 2026 ballpark guides.
Building a new home or large extension?
We lay the brick and block on new builds and extensions across Hampshire, Berkshire and Surrey, including the brick outer skin on timber-frame homes. See our new-build work or send us the details and we will come and look.
Frequently asked questions
Is timber frame cheaper than brick and block?
Usually a little, on a like-for-like specification. Timber frame often works out around 8 to 15 percent cheaper to build than brick and block, helped by faster erection and predictable factory pricing. On many projects, though, the total costs end up fairly similar once the brick outer skin, foundations and finishes are included, so cost alone rarely decides it.
Which lasts longer, brick or timber frame?
Brick and block has the edge on raw longevity. A well-built masonry house can last well over a century, and often much longer, with little structural attention. A good modern timber frame home has a design life of roughly 80 to 120 years and performs well when detailed and maintained correctly, but the tolerance for poor detailing or trapped moisture is smaller.
Is timber frame or brick better for a new build?
It depends on your priorities. Timber frame suits a fast programme, strong energy performance and a lighter foundation, and is common on self-builds. Brick and block suits durability, sound insulation, thermal mass and matching traditional or conservation-area surroundings. Many new builds actually combine the two, with a timber frame behind a brick outer skin.
Do timber frame houses have brick outside?
Very often, yes. A large share of UK timber frame homes are finished with a brick outer skin, so from the street they look identical to a masonry house. The brickwork is still laid by bricklayers; it just sits in front of a timber structural frame rather than a blockwork inner leaf. That is why bricklayers remain involved either way.
Which is warmer, brick or timber frame?
Timber frame typically reaches a high insulation standard more easily, because insulation sits within the frame's depth, so it can feel quick to warm up. Brick and block has more thermal mass, which helps even out temperature swings and can keep rooms comfortable in summer. Both can meet modern Building Regulations; they simply get there differently.
Is brick and block better for an extension?
For most extensions, brick and block is the natural choice because it matches the existing house, ties in cleanly to the original wall and keeps the whole property consistent. Timber frame can be used for extensions too, particularly where speed or a lightweight structure matters, but matching a masonry house usually still means a brick outer skin.