How to Choose a Builder in Yeovil Without Getting Stung

Check the paperwork before the price

Anyone can call themselves a builder. Before you compare quotes, ask each company for their public liability insurance certificate (£2 million is fairly standard, £5 million for larger jobs) and their company registration number so you can look them up on Companies House. A legitimate business will send these over without fuss.

Ask who will actually be on site. Many builders subcontract electrics and gas work, which is completely normal, but the electrician must be registered with a competent person scheme such as NICEIC or NAPIT, and anyone touching gas must be Gas Safe registered. You can check both registers yourself in about two minutes.

• Public liability insurance certificate, in date
• Company registration number or trading address
• Gas Safe and electrical scheme numbers for subcontractors
• Two or three recent addresses locally you can drive past

What a proper quote looks like

A one line quote for "£38,000 for rear extension" tells you nothing and gives you no protection when things change. A useful quote breaks the job into stages: groundworks and foundations, structural shell, roof, first fix, plastering, second fix, and finishes. It should say what's included and, just as importantly, what isn't.

The usual exclusions worth spotting are kitchen units and appliances, tiling, decorating, and anything below ground that can't be seen until the digger arrives. Foundations are the big variable in south Somerset. Parts of Yeovil sit on clay, and mature trees nearby can push you into deeper trench fill or a piled solution, which can add several thousand pounds. A good builder will flag this risk in writing rather than quietly absorbing it and springing it on you later.

Expect three genuine quotes to vary by 15 to 25 percent. If one is dramatically cheaper, work out what's been left out rather than assuming you've found a bargain.

• Stage by stage cost breakdown
• Written list of exclusions and provisional sums
• A payment schedule tied to completed stages, never a large sum up front
• Expected start date and rough duration in weeks

Permissions, neighbours and the bits people forget

Building work in the South Somerset area is handled by Somerset Council, and building regulations approval is separate from planning permission. Plenty of extensions fall under permitted development and need no planning application at all, but they still need building control sign off. Loft conversions, structural openings and new drainage almost always do.

If you live in a terrace or semi, and you're building near or on the boundary, digging foundations within three metres of next door's, or cutting into a shared wall, the Party Wall etc. Act applies. You need to serve notice on your neighbour, usually two months before work starts on a wall. Skipping this is one of the most common and most expensive errors homeowners make, because it can stop the job dead.

Also check whether your property is in a conservation area or listed, which is relevant for parts of the older town centre and surrounding villages. It changes what materials you can use, particularly windows and roofing.

Timings, disruption and staying sane

Be realistic about the calendar. A single storey rear extension typically runs 10 to 16 weeks from breaking ground, a loft conversion 6 to 10 weeks, and a full re-roof on a standard semi around one to two weeks depending on weather. Wet Somerset winters genuinely slow groundworks and roofing, so a spring or early summer start is usually kinder.

Agree the practical details before day one: working hours, where the skip and materials will sit, whether the builders can use your loo or need a portable one, and how you'll be updated. A short weekly catch up on site, with any changes confirmed by email, prevents most disputes. Keep a written record of every variation and what it costs, even if it's just a text message you both agree to.

Finally, hold back a retention of around 2.5 to 5 percent for a few weeks after completion to cover the snagging list. Any established builder will expect this and won't object.