CNJ Construction Consultants

CNJ Construction Consultants

Know Your Build Costs Upfront

Avoid hidden costs and builder guesswork. At CNJ Consultants, we give homeowners in Surrey and the South East clear, accurate cost estimates and tender support — so you can plan with confidence and keep your project on budget from day one.

Associated With Professionals Across the Sector

Who we are

Accurate Cost Advice,
Built Around You.

Our team of 11 brings over 50 years of combined experience in quantity surveying, project management, and construction.

We provide clear, accurate cost estimates and tender support that protect your budget, reduce risk, and keep your project on track — from the very first sketch through to completion.

What we offer

Our Services for Homeowners

Basic Cost Estimate

Get a quick, high-level overview of your project’s cost. Perfect for early feasibility and budget planning.

Detailed Cost Report

See exactly where your money would be going with a full cost breakdown, tailored to your project.

Tender Packages

We manage the tender process to vet contractors, handle queries and negotiate best and final quotations.

Reports in 2025
0
Value of projects for 2025
£ 0 m+
Company growth between 2024-2025
0 %
Your Trusted Cost Partner

Why Homeowners Trust CNJ

A Team That Responds

With 10+ staff, we’re big enough to move quickly — unlike one-person consultancies.

6 Years in Business

A proven track record helping homeowners plan and manage their projects.

50+ Years’ Experience

Expertise across surveying, construction, and project management under one roof.

Accurate & Honest

Our values guide every report and recommendation we provide.

Our Proven 3-Step Approach Gives You Clarity on Costs and Peace of Mind Throughout Your Build

Building work doesn’t have to be stressful. With CNJ, you’ll know your costs upfront and understand exactly where your money is going. Our 3-step approach gives you clear estimates, helps you choose the right builder with confidence, and keeps your project on track from start to finish.
Step 1: Share Your Plans
Send us your drawings or project details, and we’ll review where you’re at, whether it’s early sketches or full architect plans.
Step 2: Get Your Cost Report

We'll prepare a full cost report, showing every detail of your project broken down and costed

Step 3: Tender & Build With Confidence
We work with you to build detailed tenders, vet contractors, and control costs throughout the build - give you peace of mind and protecting your budget.
Ready to Discuss Your Project?

01483 339 733

Call us directly, or share your details online and we’ll quickly assess the best way to help with your project

Testimonials

Client Feedback & Reviews