Helping Homeowners Manage Construction Costs with Confidence
Independent cost consultants helping homeowners build with clarity, control, and complete cost certainty.
Who we are
Accurate Cost Advice,
Built Around You.
CNJ Construction Consultants help homeowners take control of construction costs through expert project management, budgeting, and cost advice.
Whether you’re planning an extension, renovation, or new build, we support clients throughout the construction process to help reduce financial risk, avoid budget overruns, and make informed decisions from the very start.
With practical experience in construction project cost management, we provide clear guidance to help homeowners stay in control and deliver projects with confidence.
Why CNJ Consultants
Why Homeowners Choose CNJ
Construction projects can quickly become stressful when costs start to spiral. Our role is to help homeowners stay informed, financially prepared, and in control throughout the process.
We provide:
- Construction cost advice
- Budget planning and cost control
- Project management support
- Risk reduction and oversight
- Guidance before and during construction
By helping clients understand costs early and monitor budgets throughout the project, we reduce the likelihood of unexpected financial surprises later on.
Meet our Team
Founder and Managing Director
Operations Manager
Commercial Manager
Office Manager
See How We’ve Helped Others
Recent Projects We’ve Supported
Little Shepley Basement
Private Homeowner
15 Oct 2023
Surrey
£250,000
We provided detailed cost planning and ongoing support for a large basement construction, including the pool area. CNJ ensured costs were monitored closely as the project progressed.
Horsley Thatch Extension
Private Homeowner
18 Jan 2023
Surrey
£200,000
We supported this unique residential extension, which included intricate thatch roof works and a new first-floor extension. CNJ provided detailed cost planning and guided the tender process.
Woking Kitchen & Flooring
Private Homeowner
15 Dec 2024
Surrey
£45,000
This project involved installation of a new kitchen alongside modern flooring. CNJ provided cost management and project oversight ensuring the renovation was delivered on budget.
Frequently Asked Questions
Planning a construction project can raise a lot of questions, especially around budgeting, cost control, and avoiding unexpected issues during the build. Below are some of the most common questions homeowners ask about construction project cost management, budgeting, and staying in control throughout the construction process.
How can I stop construction costs from spiralling?
The best way to prevent construction costs from spiralling is through proper budgeting, early planning, and ongoing cost control throughout the project. Professional construction cost advice can help identify risks before they become expensive problems.
What is construction project cost management?
Construction project cost management involves planning, monitoring, and controlling project costs to help ensure a build stays within budget and financial risks are reduced.
Do homeowners need a cost consultant?
Many homeowners benefit from professional cost advice, especially for extensions, renovations, and new builds where budgets can quickly increase without proper planning and oversight.
What do construction cost consultants do?
Construction cost consultants help homeowners understand budgets, manage project costs, and reduce the risk of unexpected expenses during construction projects.