Costs, at cost
Every invoice from Northwich merchants and sub-contractors is passed straight to you, exactly as we pay it. No mark-up buried in materials, no mystery line items, nothing to negotiate over.
Builders in Northwich
A Northwich builder
who shows you the numbers.
Extensions, whole-house renovations and self-builds across Northwich and central Cheshire on an open book. Every merchant invoice visible, a fixed management fee, a fair 10% on top — typically around 11% below a padded fixed-price quote.
Clarity in Simplicity
Why we're different
Most Northwich builders quote you a number. We show you the numbers.
Northwich sits in the middle of Cheshire and has one of the most varied housing markets in the county. Substantial modern family homes in Hartford, Davenham and Sandiway. Handsome Victorian villas along Chester Road and Castle Street. Waterside properties along the Weaver Navigation and around Winnington. A strong seam of solid post-war stock across Weaverham, Rudheath and Lostock Gralam. Projects here typically start with owners who've bought a well-located house with clear potential and a plan for how to unlock it.
Built Clear runs Northwich projects on an open book. We price your build openly from the plans, pass every invoice through at cost, add one fixed management fee agreed at the start, and a flat 10% on top. Nothing hidden, nothing padded, no arguments over variations. On a £150,000-plus renovation, the value of transparent pricing is enormous — you should never have to guess what your builder is making.
See our wider Cheshire builders page for how the model plays out across the rest of the county, or our 2026 Cheshire cost guide for real per-square-metre rates before you start a conversation.
The Open-Book Model
Three honest numbers. That's the whole deal.
A fixed management fee
One agreed, fixed fee to run the whole project. Programmed, coordinated, delivered. Set at the start, doesn't move as the job progresses.
A fair 10% on top
A simple ten percent on real costs covers overheads and profit. No 15% loading, no padded contingencies. Sustainable for us, fair for you.
The result: typically around 11% less than a conventional fixed-price Northwich estimate, and a build where everyone stays on the same side.
What we build
Building services in Northwich.
Home extensions
Rear extensions, side returns, wraparounds and orangeries. Northwich family homes lend themselves particularly well to open-plan kitchen-diner extensions — most of our enquiries here are that shape. Priced from your drawings and managed transparently.
Whole-house renovations
Full refurbishment. Rewires, replumbs, replasters, structural openings, new roofs, insulation upgrades. Northwich has plenty of solid 1970s and 1980s family homes worth another 30 years of proper living.
Barn conversions
The countryside around Northwich, Whitegate, Little Leigh and Comberbach has some fine agricultural conversion stock. Structural, thermal, off-grid services, joinery, finishes. Technically complex work suits open-book pricing best.
Self-build homes
One-off new builds on Northwich and Hartford plots, project-managed from planning through to handover with a fully transparent cost report at every stage of the programme.
Loft & garage conversions
Getting more out of the existing footprint. Dormer lofts, hip-to-gable extensions, integral garage conversions. Proper structural design, proper insulation, proper finishes.
Kitchen & bathroom refits
Full strip-out and refit, often as the finishing stage of a wider renovation. You see the true cost of every unit, every appliance, every tile, every fitting — with any specialist trades passed through at cost.
Where we work
Northwich and the surrounding area.
Alongside Northwich itself we cover Hartford, Davenham, Sandiway, Weaverham, Rudheath, Lostock Gralam, Whitegate, Barnton, Comberbach, Anderton, Little Leigh and the surrounding villages. From our base in Rossett we can be on a Northwich site within 40 to 50 minutes. See our full Cheshire coverage for the wider county, or our Chester builders page if you're on the west side.
Real words from real projects
What clients say.
★★★★★
Ben and his team were meticulous in planning and really clear in their communications throughout. From start to finish, the project ran seamlessly and was actually delivered earlier than anticipated. After this positive experience, we're booking for a further renovation and extension project with Built Clear in the next six months.
Jack Best · Google Review · June 2026
Common questions
Northwich builder FAQs.
How much do builders in Northwich cost in 2026?
Northwich projects generally sit at £1,900 to £2,700 per square metre for extensions and renovations, and £2,200 to £3,100 per square metre for new builds. Higher-spec Hartford and Sandiway jobs land at the top of the range. On open-book pricing you see the exact merchant and sub-contractor numbers as they come in, rather than a single padded figure. See the full 2026 Cheshire cost guide for detail by project type.
How long does a Northwich extension or renovation take?
A single-storey rear extension typically runs 12 to 20 weeks on site. A two-storey side extension is 20 to 28 weeks. A whole-house renovation runs 6 to 12 months. A barn conversion or self-build is 10 to 18 months from foundations to handover. The programme is agreed with the fixed management fee at the start, so both sides know exactly what they're committing to.
Do you work with owners of period Northwich property?
Yes. Northwich has a strong period seam in Winnington, Castle and along Chester Road. Open-book pricing suits period work particularly well because there's genuine uncertainty in the fabric of the building, and clients deserve to see how that uncertainty resolves rather than pay a padded 'safe' price.
Are you a fixed-price builder in Northwich?
Not in the traditional sense, and on projects over £80,000 that usually saves clients money. A fixed-price quote has to include a risk premium against the unknown. Open-book pricing hands that saving back to you: real costs at cost, a flat 10% on top, and a fixed management fee agreed at the start. If a job comes in under expectations, you keep the difference.
Can we live in the house during the build?
Sometimes, depending on scope. Single-storey rear extensions can usually be built with the family in place. Whole-house renovations, first-floor works and anything involving the main kitchen or stairwell are usually better handled with the house empty for at least part of the programme. We'll be honest with you about what's realistic before the job starts.
Start your project
Ready for a Northwich builder who shows their numbers?
Send us your plans and we'll build you an honest open-book guide price. No pressure, no sales patter, no padding.