Seal Sixty

At Sealsixty Ltd, we pride ourselves on being a family-run organisation with over 10 years of experience in providing energy-saving and retrofit home insulation solutions. Our friendly local teams, based in London, the surrounding Home Counties, and the South West, have accreditations that ensure a high level of service to our customers.

Our Objective

Our objective is to provide an outstanding, reliable, and affordable service to all of our customers. We understand the importance of handling our customers' enquiries with honesty and care, just as if they were members of our own family. From the moment you contact us to the installation of our products, our knowledgeable team will always go the extra mile to ensure we meet your expectations.

Our Pledge

We strive to be transparent regarding our pricing and information, working with our customers' budgets and timeframes where possible. If we can't assist you, we will endeavour to find someone who can. Our committed team will always be happy to chat with you and answer any questions you may have.

Regional Coverage

We operate from our central base in Basingstoke and also have an administrative office in Cornwall, allowing us to cover a wide geographic area. Whether you're seeking a no-obligation quote, some general advice, a heat loss survey, or something else, we hope you've found everything you need on our website to get you started.

The Sealsixty Family

When we say family, we really do mean it. Our team consists of brothers, uncles, wives, and more. At some point, you'll always have one of us looking after you. We're proud to be a family-run business, and we're committed to providing the highest level of service to our customers.

About Our Services

We offer a wide range of services, including:

• Residential Loft Insulation: Ensure your existing fibre glass insulation is still performing effectively and installed to governments current recommended standards.
• Cavity Wall Insulation: EPS bonded bead cavity wall insulation that's water resilient, suited to most structures, and providing a high level of thermal efficiency.
• Pitched Roof Loft Insulation: Spray foam insulation will help keep your home warmer in the winter and cooler in the summer whilst significantly reducing your energy bills.
• External Wall Insulation: Enhance your home's thermal performance whilst improving its exterior facade with our range of external wall insulation boards with multiple render finishes.
• Masonry Creme Wall Coating: A self-cleaning, invisible, insulating barrier that will protect your brickwork from discolouration and frost damage, whilst saving on your energy bills.
• Commercial Insulation: Closed cell spray foam insulation provides a seamless layer of insulation to corrugates that will eliminate surface condensation.
• Airex Smart Ventilation: A cost-effective, unobtrusive way of improving energy efficiency within your home by replacing existing air bricks with a smart ventilation control system.
• Water Repellent Roof Clean: Avoid a costly roof replacement with our signature MOT, which includes a full pressure wash & anti-fungal treatment with clear coat hydrophobic seal to finish.

Why Choose Sealsixty?

• Accredited Team: Our accredited team of installers specialise in all elements of retrofit home insulation and use a fully BBA-approved product range.
• Government Funding: We're Pas 2030 and Green Deal approved to assist with ECO and government-funded installations for cavity wall and loft insulation.
• Trustworthy: We're proud members of Trustmark and the Energy Saving Trust.