Extensions and refurbs done properly, by an FMB builder covering Dorset and Hampshire
Over 20 years of residential and commercial building. Tell us about your project and we'll come to you for a free consultation and estimate.
- 20+ yearsbuilding homes and commercial premises
- FMB memberFederation of Master Builders: vetted, work inspected on site
- Dorset & HampshireBased in Bournemouth
- Free estimateWe visit, talk it through and quote
What we build
From a single kitchen to a full build, residential or commercial.

Extensions
Single and two-storey extensions that give you the space you need.

Refurbishments and renovations
Strip-outs, remodels and full refurbs, from one room to the whole property.

Kitchens
New kitchens fitted properly, including the building work behind them.

Bathrooms
Bathrooms and wet rooms, from tired to finished.

Groundworks and driveways
Foundations, floor slabs and block-paved driveways with drainage.

New builds
Ground-up residential and commercial construction.
Swipe to see all six.
And plenty more. Loft and garage conversions, knock-throughs and steels, brickwork, patios and garden walls, plus fit-outs for shops, offices and other business premises.
Tell us about your jobRecent work
Finished jobs and work in progress. Tap a photo to enlarge it, then swipe or use the arrows to browse.
What customers say
Sigra exceeded my expectations with their attention to detail and commitment to quality. I highly recommend them for any construction project.
I was blown away by Sigra's level of professionalism and expertise. They delivered a beautiful space that exceeded my expectations.
Sigra's team was a pleasure to work with from start to finish. They were flexible, responsive, and delivered a beautiful end product.
Federation of Master BuildersFMB members are vetted and have their work inspected on site.Who you'll be dealing with

Sigra Projects is a building company based in Bournemouth, working across Dorset and Hampshire.
Over 20 years on homes and commercial premises, from single bathrooms to full new builds. Every job starts with a free visit, so you can meet us, talk it through and get an estimate before anything is agreed.
- Federation of Master Builders member
- Over 20 years' experience
- Free site visit and estimate
How it works
Get in touch
Call, or answer a few questions in the chat above.
Free site visit
We come to you, look at the job and talk through your ideas.
Estimate
You get a clear written estimate, usually within one to two weeks of the visit.
We build
We agree a start date and get on with it, backed by £5m public liability insurance and an FMB warranty if you want one.
Common questions
How do I get a quote?
Call 07907 576754, ask the chat at the top of the page, or fill in the form at the bottom. We then arrange a free site visit, and the written estimate usually follows within one to two weeks.
Is the site visit and estimate free?
Yes. We come to you, look at the job, talk through your ideas and give you an estimate at no charge. We don't give prices without seeing the job, because every job is different.
Which areas do you cover?
Mainly Bournemouth, Poole, Christchurch, Highcliffe, Ferndown, Wimborne, Verwood, Ringwood, New Milton, Lymington and the New Forest. Elsewhere in Dorset or Hampshire, ask anyway.
What kind of work do you do?
Single and two-storey extensions, loft and garage conversions, knock-throughs and steels, refurbishments, kitchens, bathrooms, brickwork, patios and garden walls, groundworks and driveways, new builds and commercial fit-outs. Building jobs of any size, but we don't do small repairs or odd jobs, fencing, or decorating on its own.
How long does an extension take?
A typical single-storey extension is usually around 8 weeks on site, depending on size and complexity. You'll get a realistic timescale with your estimate.
Do I need plans or drawings?
For extensions, loft conversions and similar work you'll need drawings and building regulations approval, which you arrange with your own architect or designer. You don't need them to get in touch: we can talk through what's needed at the site visit.
Do I need planning permission?
It depends on the job. We'll advise you at the site visit.
Are you insured?
Yes. We have £5 million public liability insurance.
Do you offer a guarantee?
Yes. An FMB insurance-backed warranty is available. Simon can explain the details when he gets in touch.
Are you members of a trade body?
Yes. Sigra Projects is a member of the Federation of Master Builders. FMB members are vetted and have their work inspected on site.
Let's talk about your project
Call, email, or use the chat at the top of the page. We cover Hampshire and Dorset.
- Phone
- 07907 576754
- Based in
- Bournemouth, working across Dorset and Hampshire