Specialist Roofing
& Waterproofing Contractors Since 1979

John Nicholson Ltd, has operated in the specialist sectors of the construction industry, particularly waterproofing, roofing, and specialised flat roofing, installing accredited long-term systems.

2000+

PROJECTS COMPLETED

UK

PROJECTS NATIONWIDE

❮
“I would have no hesitation in recommending your company and indeed already have done so.”
“Just popped to site and would like to say what a great job your guys are doing Wow. Big thanks for all their hard
work.”
“I would like to express my appreciation on the way in which your team carried out the work on our cottage, they broke the stereotype for builders.
They worked efficiently and courteously and I would be quite willing to recommend your company to my friends.”
“It is really good to see a firm that takes its responsibility seriously and puts their customers first.”
❯

About Us

With over 40 years of experience, John Nicholson Ltd provides specialist roofing, waterproofing and building maintenance services across the Isle of Wight and throughout the UK.

From traditional roofing and modern flat roofing systems to complex waterproofing solutions and general building works, our experienced team delivers reliable, long-lasting results for domestic, commercial and industrial properties.

Having completed over 2,000 projects, we combine specialist knowledge, skilled workmanship and a practical approach to every project.

Learn more

A hand holding a star with an orange triangle and a black graph icon in the background.

Specialist

Delivering advanced waterproofing, roofing and structural solutions backed by over four decades of mastery.

Our Values

We value honesty, reliability, and clear communication. Our commitment to quality and safety guides each project.

A target with an arrow hitting the bullseye, a warning triangle, and a fire symbol, indicating danger or risk.

Our Mission

Committed to protecting and enhancing structures through high-performance waterproofing and roofing systems.

Being builders as well gives us a greater understanding of detailing at the waterproofing interface in addition to the ability to carry out related building tasks.

Our services

Rooftop with multiple ventilation pipes and a skylight, overlooking a rural landscape with hills and trees under a blue sky with clouds.

Flat Roofs

Specialist flat roofing installations, refurbishment and long-term waterproofing systems.

A steep residential roof with light-colored asphalt shingles under construction, showing some partially installed shingles on the left side and a chimney at the top

Traditional Roofs

Natural slate, clay tiles, zinc, copper, lead and traditional metal roofing.

The corner of a brick house with stone accents, a window with white framing, a decorative water fountain, a small plant, and yellow flowers in a garden bed under a blue sky.

General Building & Maintenance

Building works, repairs, planned and reactive maintenance.

Close-up of a metal and shingled roof edge with a brick wall underneath.

Specialist Waterproofing

Bespoke waterproofing, gutter lining and building interface solutions.

Recent Projects

Some of our recent projects we have been working on.

Exterior concrete steps leading to a white door beside a stucco house, with gutters, windows, and neighboring rooftops under a blue sky

Stair Renovation

Dark slate shingle roof with two roof vents and an aluminum ladder under a cloudy sky

Roof reconfiguration: replacing incorrectly installed tiles.

Brick house with a glass-enclosed conservatory, lush garden, palm tree, and flowering plants

Conservatory conversion from glazed to solid roof.

Reliable Service

CSCS REGISTERED WORKFORCE

Having a fully qualified and CSCS registered workforce, ISO 9001 Quality Assurance (since 1993), Safe Contractor and Trustmark accreditation, being a certified member of the Federation of Master Builders (FMB), and being on the approved list of many manufacturers, Local Authorities and prestigious organisations demonstrate reliability, longevity and a professional level of competence in the works that we undertake.

Surveys & Tests

GENERAL MAINTENANCE

JNL also carries out contracted general and reactive maintenance for national and local organisations, Local Authority Grants (for disabled facilities, etc), insurance work, and small general buildings works. We also provide a survey, test, and diagnostic service.

WHY CHOOSE US

Established and trusted specialist contractors since 1979 with decades of experience in construction, roofing and waterproofing.
In-depth specialised knowledge and extensive experience across waterproofing, roofing and associated building services, delivering reliable, high-quality solutions for even the most complex projects.
Professionally qualified team with a CSCS registered workforce, delivering consistently high standards of workmanship in line with industry regulations.