Accurate, unbiased and easy to understand self build costing — for new builds, extensions and home alterations across the UK.
Planning a self-build? Whether it’s a new house construction, a major extension or a home alteration, we start with a free introductory call to understand your individual requirements — then assign you your own dedicated estimator to guide you throughout the entire process.
ProQuant’s self build estimate documents give you a complete self build cost breakdown — split by materials, plant and labour, each accurately timed and priced to your region. Our documents are designed to help you manage your own builder tender process with confidence, so you stay in full control of your construction costs from day one.
“Compared to what I saw before I started working with them It’s an incredible format. I’d say honestly that I won a lot of my work just from the presentations they supply and the way they set it out for me. ”
“I found as soon as I started working with them I started winning all my jobs, at least 9/10 and I’ve not lost a penny on the estimates they’ve priced for me.”
“Regarding the estimate itself, it’s brilliant, I couldn’t do what they do and it’s vital for me and my business.”
ProQuant’s estimating team has over 30 years of experience working in the construction trade. Whether you’re a self builder managing your first house construction or an experienced project manager overseeing multiple sites, we apply the same unique level of precision and personal care to every project. You’ll have direct access to your own estimator — not a call centre.
Everything in one place ready to present to clients within 4-5 days
or use our next day express delivery if urgent
Step 1: Send your drawings Simply email your architectural drawings or plans to plans@proquantestimating.co.uk. Within 24 hours you’ll receive a quote for the cost of your estimate.
Step 2: Receive your self build cost breakdown Within 4–5 days you’ll receive a full self build cost breakdown — a total breakdown of materials, plant and labour, each timed and priced using our live average rates specific to your region.
Step 3: Manage your build with confidence Use your ProQuant estimate as your self build calculator and tender document. Share it with builders, compare construction quotes, and keep control of your budget throughout the project.
Whether you’re planning a new house construction or a home extension, ProQuant’s self build cost estimator gives you the accurate, regionally specific cost planning you need — from just £100 + VAT.
Self build cost estimates from ProQuant start from £100 plus VAT, making it one of the most competitively priced professional estimating services in the UK. The exact cost of your estimate will depend on the size and complexity of your project. Once you send your drawings, you’ll receive a quote for the estimate cost within 24 hours.
Your self build cost breakdown is split into three key categories: materials, plant and labour. Each element is accurately timed and priced using live average rates specific to your region across the UK. The document is designed to be used as both a planning tool and a tender document when approaching builders for quotes.
In most cases, you’ll receive your completed self build cost estimate within 4–5 working days of submitting your drawings. If your project is time-sensitive, ProQuant also offers a same-day express service — ideal if you need costs quickly for planning purposes or a builder meeting.
ProQuant provides estimates for a wide range of self build projects across the UK, including new house construction, major extensions, and home alterations. Whether you’re managing your first self build or overseeing a more complex project, the service is tailored to your individual requirements from the outset.
Simply email your architectural drawings or plans to plans@proquantestimating.co.uk. Within 24 hours you’ll receive a quote for your estimate cost. You’ll then be assigned a dedicated estimator who will guide you through the process, with your completed cost breakdown delivered within 4–5 days.
Yes. Unlike many estimating services, ProQuant assigns you your own dedicated estimator for the duration of your project. You’ll have direct contact with them throughout — not a call centre — ensuring consistency, accuracy, and a personal service from first enquiry to final estimate.
Yes. All ProQuant estimates use live average rates specific to your location across the UK. Construction costs vary significantly by region, so regional accuracy is built into every estimate to ensure the figures you receive are realistic and usable wherever your build is located.
Absolutely. ProQuant’s self build cost documents are specifically designed to support your tender process. You can share the breakdown with multiple builders, compare quotes on a like-for-like basis, and use it to stay in control of your construction budget from day one.
