Air Testing in Chesterfield
Domestic & Commercial Air Testing in Chesterfield, Derbyshire
Do I need an airtightness test?
It is a government requirement for any new build development to undergo an air test. Air testing or air leakage testing is a general term which is used for the amount of air loss from a property.
In contrast to general airflow. These include draughts and voids within the building fabric.
Without an airtightness test being carried out, this could lead to the owner of the new build property to experience a loss of heat.
This is why it is important to find out in the early stages as to whether there is any air leakage.
Get a FAST FREE Quotation
How is an air leakage test carried out in Chesterfield?
The air testing procedure is carried out in Chesterfield by placing a large industrial fan, or several fans (depending on the size of the dwelling) on the opening to the property. In most cases, this would be the front door.
All the internal doors of the property will remain open to enable the whole property to be pressurised.
The fans speed will alternate which will change the air pressure of the building. These results will be recorded.
The estimation results consist of the readings from the wall surfaces, floor and roof covering.
The whole process takes about 60 minutes for each individual new build property tested. A full report of the air test is provided once complete.

What air permeability rating is required?
An air test pass is 5m3/hr/m2 or below for an air permeability rating which is similar to the amount of uncontrolled air that is being lost or leaking from the dwelling.
In the unlikely instance where the test fails, we will guide you to identify where the leakages are located so we can re-test in order to give you a pass.
Our air testing service in Derbyshire
Ratio Seven can work with you right from the beginning of the development, typically the design phase.
However, we understand that it is not always possible so we aim to be extremely versatile.
Where we have been involved from the beginning, the majority of our Chesterfield and Derbyshire customers have accomplished a first-time pass rate.
In the most part, the results are provided on the same day.
- Competitive Pricing
- Same Day Pass Rate
- Immediate Results Provided
- Discounted Rates For Additional Air Tests
- Next Day Air Testing Available Upon Request
- Free Pre-test Consultation
- Temporary Ventilation Sealing Provided
- Flexible Appointments To Suit You
- Weekend Appointments Available
- Accreditation New Build Specialists
Looking for a same day air test in Chesterfield, Derbyshire
Do you need an air test on the same day in Chesterfield? Sometimes, it is possible to arrange this with less than 24 hours notice.
Have you been let down by another company and are now in urgent need of an air test certificate?
Not a problem, just get in touch and we will have a reliable air tester on site without delay.
If we have a Chesterfield air testing engineer available in your area we will certainly do our very best to do this for you. Please contact us directly for this service.

Air Testing Areas Covered in Derbyshire
Air Testing In Chesterfield
A little bit about Derbyshire
The county of Derbyshire is located in the East Midlands of England. Located at the southern edge of the Pennine mountain range, it includes much of the Peak District National Park.
As a National Forest it is bounded by Greater Manchester to the north-west, West Yorkshire to the north, South Yorkshire to the north-east, Nottinghamshire to the east, Leicestershire to the south-east, Staffordshire to the west, and Cheshire to the west.
Derbyshire’s highest point is Kinder Scout, at 636 metres. Derbyshire’s lowest point is Trent Meadows, at 27 metres. With a length of 66 miles, the River Derwent runs north to south.
Among the furthest points from the sea in Britain is Church Flatts Farm at Coton in the Elms near Swadlincote, according to Ordnance Survey data from 2003. Despite its unitary status, Derby remains part of the ceremonial county. It has 30 towns in the non-metropolitan county with tens of thousands to a hundred thousand residents, but sprawling rural uplands with sparse habitation.

Building Regulations Consultant for London Builds
If you’re planning a project in the capital, a building regulations consultant could be your best starting point. From helping you meet local rules to avoiding delays, this article looks at how they guide you through every step of the process. Keep reading to find out how it all works.

SAP Assessment Newcastle: Expert Help for Energy Compliance and EPC Approval
Wondering how your new build or renovation stacks up for energy use? A SAP assessment could hold the answer. This guide breaks down what the process involves, why it matters, and how skilled assessors in places like Newcastle help keep your project on track. Keep reading to find out more.

SAP Calculations for New Builds and Extensions
Thinking about building a new home or converting an existing one? SAP calculations are a key step in making sure your project meets energy rules and gets approval. This article walks you through what they are, why they matter, and how to get them sorted quickly and correctly.