Construction Estimating, Quantity Surveying & Cost Planning Services Across the UK
Page Building Consultants provides professional construction estimating, quantity surveying, and cost planning services for contractors, developers, architects, and property investors across the UK. With over 38 years of hands-on construction industry experience, we combine traditional quantity surveying expertise with modern estimating software to deliver fast, accurate, and reliable building cost advice. From small residential extensions to multi-million-pound commercial developments, our building cost estimator UK services help you plan budgets, control spend, and win tenders with confidence.
Accurate · Fast · Reliable · Nationwide UK Coverage · Fees from £200 + VAT
We Help Clients Understand & Control Construction Costs
From initial cost planning and preliminary budget estimates through to final account and EPC compliance, Page Building Consultants provides expert construction consultancy services delivered with 38+ years of industry experience. We are the building cost estimator UK professionals trust for accurate, fast, and reliable cost advice on residential, commercial, and infrastructure projects of every size — from house extensions valued at £25,000 to major developments worth up to £150 million. Our full range of services includes construction estimating, quantity surveying, Bills of Quantities, tender support, cost reporting, energy performance certificates (EPCs), and eco works compliance across the United Kingdom.
Construction Estimating Services
We produce detailed and accurate cost estimates for projects ranging from small residential works to large-scale developments. Advanced software, 50% faster, 2–3% margin of error.
- Preliminary budget estimates
- Detailed construction cost plans
- Tender-ready pricing documents
- Labour, material, and plant breakdowns
Quantity Surveying Services
Professional cost control and financial management throughout the project lifecycle. From cost planning and forecasting through to final account preparation.
- Cost planning & forecasting
- Valuations and interim payments
- Contract cost management
- Final account preparation
Energy Performance Certificates
Fast and compliant EPC assessments for residential and commercial properties across the UK. Accredited assessors, 24-hour certificate issued.
- Residential & commercial EPCs
- New build & existing properties
- 24hr certificate issued
Bills of Quantities (BOQ)
Structured BOQs prepared in accordance with NRM & SMM7 standards to support tendering and procurement. Excel & PDF formats, trade-specific breakdowns.
- NRM & SMM7 compliant BOQs
- Excel & PDF formats
- Procurement-ready documentation
Tendering & Bid Support
Helping contractors submit competitive and accurate tenders. Tender analysis, subcontractor comparisons, cost risk review, and bid optimisation support.
- Tender analysis
- Subcontractor comparisons
- Bid optimisation support
Cost Reporting
Detailed financial reporting throughout the construction lifecycle — from interim valuations to final account. Keep full control of project spend at every stage.
- Interim valuations
- Cash flow forecasting
- Final account reporting
Eco Works & CESP
CESP services and eco-building works to help clients meet modern sustainability and regulatory requirements with practical, cost-effective solutions.
- CESP services
- Eco-building works
- EPC compliance support
From drawings to estimate in 3 simple steps
We have made the construction estimating and cost planning process as straightforward as possible. No jargon, no unnecessary delays — just fast, accurate results you can act on immediately. Whether you are a homeowner planning an extension, a developer preparing a tender, or a contractor pricing a new build, our proven three-step process gets you from drawings to a detailed, professional estimate quickly. We combine traditional quantity surveying expertise with modern estimating software to deliver reliable cost forecasts that are typically accurate to within 2–3% of the final construction cost.
Submit Your Drawings
Send us your architectural drawings, plans, or project brief — by email or via our contact form. No project is too small or too large. We work with everything from single-room extensions to multi-million pound commercial developments.
- Drawings, PDFs, or project brief
- Any stage — concept to planning
- Residential, commercial & industrial
Receive Your Estimate
We analyse your project and produce a detailed, accurate cost estimate — typically within 24 hours. Using advanced estimating software, we achieve a 2–3% margin of error so you can plan and budget with real confidence.
- Turnaround within 24 hours
- 2–3% margin of error
- Full trade-by-trade breakdown
Review & Refine
We walk you through the estimate together. If scope changes or value engineering is needed, we revise quickly. You get a final, client-ready document — whether that's a BoQ, cost plan, or tender package — ready to go to contractors.
- Plain-English review call
- Revisions included as standard
- Contractor-ready documentation
38 Years of Construction Expertise.
One Point of Contact.
Page Building Consultants is managed personally by Andrew Page — a seasoned building cost estimator and quantity surveyor with over 38 years of hands-on construction industry experience. You deal directly with the expert, not a junior account manager.
We combine traditional quantity surveying expertise with modern estimating software to deliver fast and reliable results. Our advanced tools produce estimates 50% faster than manual methods, while maintaining an industry-leading 2–3% margin of error.
Whether you need a quick budget feasibility, a full Bills of Quantities, or ongoing cost management throughout your project, we deliver with precision and speed — supporting successful project planning and tendering across the UK.
With four decades of construction estimating experience, we have seen every project type imaginable — from single-storey house extensions and loft conversions to multi-million-pound commercial developments and public sector refurbishments. Our deep understanding of the UK construction market, combined with our investment in advanced estimating software, means we produce accurate, competitive, and detailed cost plans in a fraction of the time of traditional methods. If you are searching for a reliable building cost estimator UK, a fast quantity surveyor for extensions, or expert construction estimating services London and beyond, Page Building Consultants is the trusted partner you need.
Estimating fees start from £200 + VAT. Contact us for a tailored quote based on your project scope.
Recent Projects & Case Studies
We have supported hundreds of construction projects across residential, commercial, public, and infrastructure sectors throughout the United Kingdom. These recent case studies demonstrate the accuracy, speed, and real financial value we deliver for every client. From a £22.5 million station redevelopment requiring phased cost reporting and EPC compliance, to a £3.8 million luxury private residence where our tender package secured a 4% saving, our work speaks for itself. Every project below shows the actual challenge we faced, the services we provided, and the measurable outcome achieved — giving you confidence that Page Building Consultants is the right building cost estimator UK partner for your next development.
Large Residential Development
Private Developer
Challenge
The developer needed a full cost plan and BoQ produced within 5 working days to meet a funding deadline, covering 50 mixed-tenure units across three blocks.
Outcome
Delivered a comprehensive Bills of Quantities and cost plan within 4 days. The project came in 1.8% under the original estimate at final account, saving the client over £140,000 against budget.
Theatre & Public Building Refurbishment
Local Authority
Challenge
A historic theatre required full refurbishment while remaining partially operational. The client needed competitive tender pricing, heritage compliance, and ongoing cost control throughout.
Outcome
Produced a full tender package that attracted 6 competitive bids, achieving a 10% saving against the initial budget estimate. Monthly cost reports kept the client fully informed with zero cost overruns at completion.
Station Redevelopment Project
Transport Infrastructure Client
Challenge
A major station redevelopment requiring detailed estimating across structural, M&E, and fit-out packages, plus EPC compliance for a complex multi-use building with demanding energy requirements.
Outcome
Delivered phased cost reporting across all packages, enabling the client to manage cash flow effectively. The EPC assessment was completed within 48 hours of handover, achieving an A-rating and supporting the client's sustainability commitments.
High-End Private Housing
Private Client
Challenge
A high-specification private residence requiring detailed cost planning across premium finishes, bespoke joinery, and complex M&E installations, with a tight programme to meet the client's move-in date.
Outcome
Delivered a comprehensive cost plan and tender package that secured a competitive contractor at 4% below budget. Ongoing cost reporting ensured the project completed on time and within the agreed budget.
What Our Clients Say
Lasting relationships with developers, architects, and contractors across the UK.
“Andrew and the team transformed our development timeline completely. Their estimating accuracy is outstanding and their fast turnaround saved us weeks of planning time on every project. We have used Page Building Consultants on over a dozen developments now, and they consistently deliver cost plans that keep us well within budget. The detailed Bills of Quantities they produce make tendering straightforward and the 24-hour response time is invaluable when we are working to tight deadlines. I would not hesitate to recommend them to any developer looking for reliable construction estimating services London or nationwide.”
“We have used Page Building Consultants on multiple commercial and residential projects across the Midlands. Their Bills of Quantities are incredibly detailed and professionally presented, and the 24-hour turnaround is genuinely impressive. As an architect, having reliable cost information early in the design process is essential, and Andrew's team provides exactly that. Their cost planning insights have helped us value-engineer designs without compromising on quality, saving our clients significant sums before construction even begins. Highly recommended to any architect or developer seeking expert quantity surveying support.”
“The cost planning and tender support from Page Building Consultants has been first-class from day one. Andrew's 40 years of experience really shows in the detail — he spots risks and cost drivers that others miss, and his pricing is always competitive and well-researched. Since we started using their construction estimating services, we have won significantly more tenders because our bids are based on solid, accurate figures rather than guesswork. The BoQs are trade-ready and the breakdowns make it easy for our subcontractors to price accurately too. A genuinely valuable partner for any contractor.”
“We were planning a two-storey extension and had no idea what the real cost would be. Page Building Consultants gave us a detailed estimate within 24 hours that broke down every single trade — from foundations to decoration. It gave us the confidence to move forward with our project and helped us secure the right builder at a fair price. Andrew was patient, explained everything in plain English, and even suggested a few value engineering ideas that saved us nearly £8,000. Excellent service for anyone who needs a quantity surveyor for extensions or home improvement projects.”
“As a portfolio landlord with multiple residential and commercial properties, I need fast, accurate cost advice I can rely on. Page Building Consultants delivers every time — whether it is a full refurbishment cost plan, an EPC assessment, or a quick feasibility budget for a new acquisition. Their EPC assessor London service is particularly efficient, and the certificates are turned around within 24 hours. The pricing is transparent, the communication is excellent, and Andrew's market knowledge is second to none. I would not use anyone else for construction cost consultancy in the UK.”
How much does a home extension cost in 2025?
Understanding the true cost of a home extension is one of the biggest challenges facing UK homeowners and developers today. Our extension cost guide provides real, detailed cost breakdowns for the UK's most popular residential projects — based on our live pricing data and 40 years of estimating experience. We break down every trade from groundworks to decoration, so you can see exactly where your budget goes. Whether you are planning a single-storey kitchen extension, a two-storey addition, or a loft conversion, these figures give you a reliable starting point. For a precise, tailored quote based on your specific drawings, location, and specification level, contact our quantity surveyor for extensions team today.
Try the Interactive Calculator
A single storey rear or side extension is the most popular home improvement in the UK. Typically used to create an open-plan kitchen-diner, utility room, or additional living space. Costs vary significantly based on size, specification, and location.
Also budget for:
- Planning & building regs fees (approx. £1,200–£2,500)
- Architect / designer fees (approx. £1,500–£4,000)
- Structural engineer (approx. £500–£1,500)
- VAT at 20% on most works
Costs shown are for a standard mid-spec build in the Midlands. London and South East typically add 15–25%. High-spec finishes (bi-fold doors, underfloor heating, lantern roof) will increase costs.
See the quality of our work — before you commit
Download real examples of our Bills of Quantities and cost plans to see the quality and detail we deliver before you commit to a project. These are genuine documents from completed UK construction projects, prepared to professional standards including NRM2 compliance, with full trade-by-trade breakdowns, preliminaries, and contractor pricing summaries. Reviewing these samples gives you a clear picture of the accuracy, depth, and professional presentation you can expect when you commission Page Building Consultants. Whether you need a Bill of Quantities for competitive tendering, a detailed cost plan for funding applications, or a quotation for a residential build, these downloads demonstrate why contractors, developers, and architects across the UK trust our construction estimating services.
Bills of Quantities — 15–19 Lane End Inn
A full residential conversion BoQ covering demolition, structural works, internal fit-out, and external works. Prepared to NRM2 standards with detailed trade-by-trade breakdowns.
Quotation — Belmont Avenue
A detailed cost estimate and quotation for a residential project on Belmont Avenue, including elemental cost breakdown, preliminaries, and contractor pricing summary.
Ready to get a quote for your project?
We typically turn around estimates within 24 hours. No obligation, no fuss.
Supporting a Wide Range of Construction Professionals
We work with clients across the full spectrum of the UK construction industry — from individual contractors and private homeowners to large-scale property developers, architects, engineers, and public sector organisations. Our flexible, desk-based approach means we can support projects of any size and complexity, anywhere in the United Kingdom. Whether you are a main contractor needing a Bill of Quantities for tender, a developer requiring a full cost plan, or a homeowner planning an extension and searching for a quantity surveyor for extensions, we tailor our services to meet your exact requirements with the same level of care and accuracy.
Main Contractors
Accurate tender pricing and Bills of Quantities to help main contractors win work and manage costs throughout the project lifecycle.
Property Developers
From feasibility budgets to full cost plans — we help developers understand and control costs at every stage of residential and commercial development.
Architects
Cost planning support at design stage to ensure projects remain within budget. We work alongside architects to provide reliable cost information from concept to completion.
Also Working With
Frequently Asked Questions
Everything you need to know about our building cost estimator UK, construction estimating services London, quantity surveyor for extensions, and EPC assessor services. Can't find your answer? .
Request a Free Consultation
Whether you need a quick budget estimate for a house extension, a full Bill of Quantities for a commercial tender, an EPC assessment for a rental property, or ongoing cost management for a large development, we are here to help. Get in touch today using the form below or any of the contact details provided, and we will respond within 24 hours with a tailored quote or consultation. Our construction estimating services London team and nationwide consultants are ready to support your project from concept to completion.
Estimating fees start from £200 + VAT. Contact us for a tailored quote based on your project scope.