About Great British Lofts
In 2024, two established loft boarding specialists – Yorkshire Loft Boarding and Loft Genie – joined forces to combine their expertise and experience. Both companies had built strong reputations for service excellence, competitive pricing, and high-quality installations as approved LoftZone installers. By bringing together their resources, knowledge, and skilled teams, we formed Great British Lofts (GBL).
While our individual reputations remain evident through hundreds of five-star Google reviews, the focus has shifted to building a stronger, unified business under the Great British Lofts name. And with extensive experience across loft boarding, access solutions, lighting, and insulation, we continue to deliver high standards across every loft conversion project.
Frequently Asked Questions
Is Loft Boarding Safe in a New Build?
Yes, loft boarding can be safe in a new build property when the correct system is used and the installation does not compromise the roof structure, insulation or ventilation.
Most new build homes are designed with ceiling joists intended to support the ceiling below, not significant storage loads. Installing traditional timber legs or directly fixing boards to joists can create problems with insulation compression, condensation and excessive loading.
Great British Lofts uses the LoftZone StoreFloor system, a raised loft boarding solution that allows insulation to perform correctly while providing a secure storage platform. The system has been independently tested and is suitable for use in many modern homes.
Before installation, our surveyors assess the loft structure, insulation depth and any restrictions that may affect the property warranty.
Will Loft Boarding Void My NHBC Warranty?
Loft boarding does not automatically void an NHBC warranty.
However, modifications that affect the structural integrity of the roof, ceiling joists, trusses or ventilation systems may create issues if defects arise in the future.
To protect your warranty:
Do not cut structural timbers.
Maintain adequate loft ventilation.
Avoid compressing insulation.
Use systems designed specifically for modern homes.
Great British Lofts installs raised loft boarding systems that minimise interference with the original roof structure and insulation.
Homeowners should always retain installation documentation and check the specific terms of their warranty provider.
LoftZone vs Timber Legs vs Metal Legs: Which is Better?
Traditional timber legs have been used for many years to raise loft floors above insulation, but they have several disadvantages.
Timber legs:
Create thermal bridges.
Can transfer moisture.
Require more installation time.
May vary in quality and spacing. Not BBA Certified Metal Legs:
Create thermal bridges.
Can transfer moisture. Claiming to be stronger than plastic but don’t regard ceiling joist limitations. Not BBA Certified
LoftZone StoreFloor:
Manufactured to consistent standards.
Creates a raised storage platform above insulation.
Helps maintain airflow.
Reduces thermal bridging.
Designed specifically for loft storage applications.
For most modern homes, a purpose-designed raised loft boarding system provides a more reliable and professional solution.
How Much Weight Can a Loft Floor Hold?
There is no single weight limit that applies to every loft.
The safe loading capacity depends on:
Property age.
Joist size.
Joist spacing.
Span length.
Existing structural design.
Many lofts are intended only for occasional access and light storage.
Heavy items such as gym equipment, safes, filing cabinets or large quantities of books may require structural assessment.
During a survey, Great British Lofts assesses the loft construction and advises on suitable storage use.
As a general guide, loft storage should be distributed evenly rather than concentrated in one location.
Why Does Condensation Occur After Loft Boarding?
Condensation occurs when warm, moisture-laden air comes into contact with colder surfaces.
Problems often arise when:
Insulation is compressed.
Loft ventilation is blocked.
Airflow beneath boarding is restricted.
Moisture from bathrooms or kitchens enters the loft.
Poorly installed loft boarding can increase condensation risk by trapping moisture and reducing airflow.
Raised loft boarding systems help preserve ventilation pathways and allow insulation to perform correctly.
If condensation is present before installation, the underlying cause should be identified and addressed before any boarding work takes place.
What Is Raised Loft Boarding?
Raised loft boarding is a system that creates a storage platform above the insulation layer.
Modern building regulations typically require 270mm of loft insulation. Installing boards directly onto ceiling joists compresses the insulation and reduces its effectiveness.
A raised system:
Preserves insulation performance.
Maintains airflow.
Creates usable storage space.
Reduces condensation risk.
Raised loft boarding has become the preferred method for creating loft storage in modern homes.
What Does BBA Certification Mean?
BBA stands for the British Board of Agrément.
The BBA independently assesses construction products to verify their performance, durability and suitability for their intended use.
When a product holds BBA certification, it means it has undergone rigorous testing and assessment.
For homeowners, BBA certification provides reassurance that a product has been independently evaluated rather than relying solely on manufacturer claims.
When choosing a loft boarding system, certification can be an important indicator of product quality and performance.
Can I Board Over Loft Insulation?
You should not install loft boards directly on top of insulation.
Doing so compresses the insulation, reducing its thermal performance and potentially increasing heating costs.
Compression can also contribute to moisture-related issues by reducing airflow within the loft space.
The recommended solution is to use a raised loft boarding system that allows the insulation to remain at its full depth while creating a storage platform above it.
This preserves both energy efficiency and storage capacity.
Why Does My Loft Feel Damp?
A damp loft is usually caused by excess moisture and inadequate ventilation rather than a roof leak.
Common causes include:
Bathroom extractor fans venting into the loft.
Condensation from everyday household activities.
Blocked eaves ventilation.
Compressed insulation.
Poor airflow.
Signs include:
Water droplets on felt.
Mould growth.
Damp timbers.
Musty smells.
A professional loft survey can identify the cause and recommend appropriate ventilation improvements before loft boarding is installed.
Is Loft Boarding Worth It?
For many homeowners, loft boarding is one of the most cost-effective ways to increase usable storage space without extending the property.
Benefits include:
Additional storage.
Reduced clutter.
Better use of existing space.
Improved access with a loft ladder.
Potential appeal to future buyers.
A professionally installed raised loft boarding system can transform an unused loft into a practical storage area while preserving insulation performance and ventilation.

Great British Lofts – Trustmark Accredited
In 2025, Great British Lofts achieved TrustMark accreditation. Demonstrating compliance with government-endorsed standards for quality, consumer protection, and energy-efficient home improvements.
Today, we operate from Scotland to the South East, and have established ourselves as a leading provider in the UK loft boarding industry. Setting benchmarks for both service and value for comprehensive loft conversions taken from concept to completion.
Our Expertise in Loft Conversions
Your loft holds more potential than you might think. And that’s where our expertise comes in. At Great British Lofts we specialise in transforming unused loft spaces into practical, comfortable rooms that genuinely enhance your home. Whether you’re planning a home office, an extra bedroom, or simply smarter storage, we will guide you through every step.
- First, we assess your space and listen to what you need.
- Then, we design a solution that works for your layout, budget, and lifestyle.
- Lastly, we get to work on installing your new loft conversion.
And because we focus on both functionality and finish, you get a result that not only looks great but performs well too.
Additionally, you can rely on us to handle every aspect of the loft conversion process. Including access, insulation, lighting, and structure. So, you don’t have to juggle multiple trades or multiple contractors. Giving you complete peace of mind in dealing with a single point of contact.
Most importantly, we keep the process straightforward and stress-free. So you can enjoy the transformation of your home without the usual disruption, delays, or confusion.
In short, at Great British Lofts, we make it easy for you to unlock the full value of your loft and turn it into a space you’ll use every day.
Get in touch with our team today to discuss your ideas. And let’s work together on transforming your home!
Why Choose Great British Lofts
- Proven expertise built from two trusted loft specialists
- High-quality workmanship with attention to every detail
- Competitive pricing with clear, honest quotes
- 10 year warranty
- Fully managed service from design to completion
- Approved installers using trusted systems and materials
- TrustMark accredited for added peace of mind
- Friendly, reliable team focused on your needs
- Hundreds of five-star reviews reflecting consistent customer satisfaction
- Efficient, tidy installations with minimal disruption
- Nationwide coverage from Scotland to the South East
