+44 345 6465 454
callcenter person
Get a quote

atspace engineer with checklist

Why would you use us?

Vector 43

Call now for your wall and floor U-Value build ups

Vector 43

Energy experts on hand to assist with all your Part L requirements

Vector 43

Calculate U-value and R-value fast with our in-house energy assessors

No video selected

Select a video type in the sidebar.

"We didn't understand U-values, but ATSPACE took care of everything, we have used them before, and we can't recommend them enough."

Carrie French

Revaluated U-Value Build-ups =
100% Compliance

We’ve Got You Covered

With our network of
Engineers across England
& Wales

Call Now for an Instant Quote or Advice

How Much?!

At ATSPACE, we like to be as transparent as possible. That’s why we’ve provided a breakdown of our costs for every service we provide. Simply click on the filter to find out what you can expect to pay when you select ATSPACE as your building compliance partner.  


U-Value Calculation(s)

Desk Based Service

The Production of U-Value Calculation(s)
Cost £29 Per Calculation
Additional Bolt On Service(s)  
Condensation Risk Assessment - Desk Based Service £51 Per Assessment
PSI Values - Desk Based Service £117 Per PSI Value

Don’t See The Value We Can Add?

Please get in touch with the A-TEAM on 0345 6465 454

no1-hand 2
Same Day Quote and Booking System
no1-hand 1
Customers Specification Requested
no1-hand 4 (1)
Energy Team Make Calculations and Recommendations
signed off building regulations 1 (4)
U- value - Thermal Performance Report Issued For Compliance

Want More?

Vector 43

Condensation Risk Assessment: 
Making sure your build ups hold no risk of condensation. Get Compliant with Part C of the Building Regulations.

Read More
Vector 43

PSI Values:
PSI Values are an expression of the heat lost at the corners and around the windows of your build. PSI values can be calculated by your SAP assessor- Enquire Now

Read More
Vector 43

SAP Calculations:
For all Residential new build and conversion buildings, the approved national calculation methodology, to calculate the energy efficiency of your build and a production of an EPC

Read More
Vector 43

SBEM Calculations:
For all non-domestic buildings, the approved national calculation methodology for the energy efficiency of your build

Read More

Uncomplicated Compliance

signed off building regulations 1 (6)
Get Better results in you Part L compliance
no1-hand 1
Build Better- Talk to our Energy Experts
no1-hand 5 (1)
U Value - Accredited by Elmhurst – STROMA

U-Values are designed to measure the elements of the building’s fabric for heat loss. Essentially, they need to be assessed to find out how effective they are in preventing or stopping heat from transferring between inside and outside of a building.

Ideally, you want your U-Values to perform well as insulators, so the lower the U-value, the better. This means there is less energy needed to keep your home comfortable.

ATSPACE is fully equipped to ensure that you understand these regulations and meet the requirements needed to pass your regulations. We are closer to the deadline of 2050 net zero carbon emissions, and all these building compliances help pave the way.

U-Values relate to Part L of the Building Regulations and help ensure that your building’s impact on the environment is the best it can be.

As with all compliances, it’s best to get the advice at the earliest possible stage to ensure compliance is not only met, but also surpassed. It is far easier to do this than change things in retrospect. As energy prices increase, it is far better to have these under control now. The lower your U-Value, the cheaper your build will be to run.

If you would like more advice on U-Values, please call a member of our team, who will be happy to offer advice and guidance.

Energy being at the forefront with the new regulations. Get your U-Values calculated and look at different options from either a cost or energy consumption point of view. What’s your requirement?

Benefit from our wealth of knowledge and the largest knowledge bank in our industry for u values and R-values. Build better.

Uncomplicated compliance brought to you from ATSPACE since 2008. Industry Leaders

Trusted by 9K+ businesses
taylor wimpey

ATSPACE was founded in 2008 and has continued to grow into the company it is today. I am a property developer myself, so I realise how important it is to get compliant swiftly and easily. We spend our time ensuring that we deliver uncomplicated compliance to our clients, and our 5-star Google reviews speak for themselves. ATSPACE offers leading design, consultancy and compliance for self-builders, industry professionals to national house builders at any stage of the project. Planning is key as I’m sure you are aware that getting in at design stage makes compliance uncomplicated.

If you are looking for help with U-Values, speak to one of our assessors, we can promise:

• Same day Quotation and Booking

• Fast U-Value Calculations

• Reporting and recommendations on U-Values build up

• PSI values and Condensation reporting available to assist with this service

• The largest knowledge hub in our industry

U-Values don’t have to be complicated. They are here to measure the heat loss through the building's fabric. The reason why we have to assess U-Values is to ensure that they perform to, and above expectations with regards to the effectiveness of preventing or stopping heat from transferring inside and outside the building.

The lower your U-Value result, the better build-up of material for thermal performance you have. By having the u value calculations, we can quite simply use these in your Part L SAP assessment which in turn will yield better results.

There are other considerations you may want to look at such as PSI values as well as condensation risk assessments. To know more about these please take advantage and speak to one of our team.

I want ATSPACE to be the Home of Uncomplicated Compliance

Paul Whiffin ATSPACE
Managing Director


Paul Whiffin Profile 1


U-Value Calculations - Questions Answered

What Is Thermal Bridging?

Thermal Bridging is the heat loss around the building junctions. This can affect your energy performance. Get the best from your build, knowledge is power!

What Are PSI Values?

PSI Values are very similar to U-Values. PSI Values are important to passing your assessments. Make sure you speak to your assessor!

Ultimate Guide To Passing Your SAP

Your SAP Assessment is vital to the energy performance of your build. Get help at the earliest possible stage to ensure you get compliant and you don’t have any expensive remedial work to complete!

Case Studies

Take a look at some of the many ways we’ve helped our clients achieve building compliance success on their projects.

"Thank you ATSPACE for everything you have done, we were so impressed by your team."

Mark Garland

Team work makes
the dream work =
Design stage Part L completed

"We were recommended ATSPACE by friends, and we were so happy with our results, helped along by your experts, thank you."

Jason Barry

U-Value &
PSI Calculated =
EPC rating achieved

Customer Scope

Bring All Your Compliance Under 1 Roof. No work is Sub- Contracted out

compliance-testing-services 1

Whether you’re working on a residential or commercial development, rely on us to take care of all your design, consulting, compliance and certification requirements, whatever the stage of your project. When everything is under one roof, why go anywhere else?

Design & planning, part built, as built or energy certification, you can be confident that your project will meet compliance every step of the way. All work is done in-house by our team of dedicated engineers and energy assessors, so you can be sure of an efficient, thorough and top-quality service. To find out more about our multi-disciplinary service offering, simply select the service you require by clicking the icons below. In a rush? Contact us now and get put straight through to a technical expert who will handle your enquiry efficiently.

Copyright © 2022 Atspace Ltd. Website Design by Insynth Marketing Ltd.