RISA delivers professional, independent and impartial inspection & auditing across England and Wales. All services are delivered to the glazing and construction industries, the legal profession and homeowners to the highest technical standards and with outstanding customer service.
RISA conducts over 1,000 inspections each month and is the sole provider of assessment services for FENSA. These inspections help installers demonstrate compliance with Building Regulations and uphold the standards expected of FENSA Approved Installers. Where issues are identified, RISA works with installers to support timely rectification — helping prevent homeowner complaints, reduce costs, and protect installer reputation.
Ensure that your completed work meets or exceeds all required standards, helping maintain your reputation and reducing the risk of future disputes.
If you are involved in a customer complaint or dispute, RISA provides independent assessments to establish facts and help resolve issues quickly and fairly.
When disputes escalate to legal proceedings, RISA’s expert witnesses produce fully compliant, court-ready reports that support your position with factual, independent evidence.
Approved Document F legally requires trickle vents to be installed on replacement windows to ensure background ventilation. An exception exists where sufficient ventilation can be demonstrated by other means. RISA offers independent pulse testing to accurately measure background ventilation levels, providing the necessary evidence to support compliance without the need for trickle vents where permitted.
Check what plan is best for you, We care about your convenience in using the application, so you can update your plan
Entry level inspection
Typically takes 30-40 minutes on site
Window/door installations only
Electronically created, colour coded report that covers
Not for use in litigation.
Learn more here
Typically requested by credit providers or banks to further a Section 75 claim.
Inspection usually takes 1-2 hours.
Full inspection with a preformatted written report provided as a PDF.
Available for installations of windows, doors, conservatories, or roof lights
Report covers:
Provides recommendations for remedial works if necessary.
Can provide a range of costs for possible remedial works upon request.
Not for use in litigation.
Learn more here
Detailed, item by item inspection with a bespoke written report provided as a PDF.
Inspection typically takes 2-3 hours
Available for installations of windows, doors, conservatories, or roof lights
Report covers:
Provides recommendations for remedial works if necessary.
Can provide a range of costs for possible remedial works upon request.
Not for use in litigation.
Learn more here
Air Pressure Test to confirm extra trickle vents are not required
Test before and after installation, both included in the price
Tests take 30-60 minutes
Test can take place in an occupied property with little disruption.
Not for use in litigation.
Learn more here
Check what plan is best for you, We care about your convenience in using the application, so you can update your plan
Detailed, item by item inspection with a bespoke CPR 35 compliant report provided as a PDF.
Inspection undertaken by assessors who have undertaken RICS Expect Witness training
Available for installations of windows, doors, conservatories, or roof lights
Report covers:
Provides recommendations for remedial works if necessary.
Can provide a range of costs for possible remedial works upon request.
Suitable for litigation use
Learn more here
Expert Determination is a form of Dispute Resolution. It’s a binding alternative to going to court or arbitration
Delivers final, legal and binding decisions on issues such as building regulation compliance or installation quality
More efficient and cost-effective than court or arbitration
Ensures confidentiality, with no public disclosure of details with the average time for the process to be completed within 28 days
You don’t have to decide alone. If you’re uncertain about which service is most suitable, RISA’s experienced team will assess your situation and offer tailored advice. We’re here to ensure you get the right support, first time.
It’s a common (and understandably upsetting) moment: the new windows are in, you step back to admire them… and then … Continued
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Over the past few month, RISA has seen a significant increase in requests from Installers, Builders, Architects and Homeowners asking … Continued
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