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Mastic Sealant in Waltham Cross (69)

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  • WeMar Construction Logo

    WeMar Construction

    9.95

    (115 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Extensions / Conversions
    Workshop Design / Construction
    Structural Steels
    Call
  • Daniel James Landscape & Build Logo

    Daniel James Landscape & Build

    9.94

    (194 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Garage Conversions
    Fire and Flood Renovation
    Basement / Cellar Conversions
    Call
  • G & B PROJECT SOLUTIONS LIMITED Logo

    G & B PROJECT SOLUTIONS LIMITED

    9.50

    (6 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Agricultural Building
    Core Drilling
    Basement / Cellar Conversions
    Call
  • Patriot DB Services Ltd Logo

    Patriot DB Services Ltd

    (32 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Loft Conversions
    General Building
    Stretched Ceilings
    Call
  • Gkr Builders Ltd. Logo

    Gkr Builders Ltd.

    9.66

    (57 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Loft Conversions
    Concreting
    Sustainable Construction
    Call
  • C&S Refurb & Constructions Ltd Logo

    C&S Refurb & Constructions Ltd

    10.00

    (7 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Workshop Design / Construction
    Agricultural Building
    Cladding
    Call
  • Heating & Plumbing Logo

    Heating & Plumbing

    9.67

    (45 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Equestrian Stable
    Car Ports
    Basement / Cellar Conversions
    Call
  • Ardits Builders

    (0 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Car Ports
    Diamond Drilling
    Garden Studios
    Call
  • Remi Builder Logo

    Remi Builder

    9.92

    (89 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Core Drilling
    Demolition
    Suspended Ceilings
    Call
  • Em Construction & Maintenance Ltd Logo

    Em Construction & Maintenance Ltd

    9.70

    (9 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Concrete Garages
    Sustainable Construction
    Demolition
    Call
  • Lock Building London Logo

    Lock Building London

    10.00

    (8 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Car Ports
    Agricultural Building
    Extensions / Conversions
    Call
  • LJH Builders Ltd

    9.82

    (64 reviews)

    Operates in Waltham Cross

    Services & skills
    Builder
    Mastic Sealant
    Building Merchants
    Tree Houses
    Workshop Design / Construction
    Call

Find Mastic Sealant Services in Waltham Cross

Need to tidy up around windows, doors, bathrooms, or kitchens with mastic sealant but not sure if your DIY skills are up to the job? Checkatrade can help.

We’ll connect you with mastic sealant services covering Waltham Cross to get those gaps sealed, water out, and your home’s surfaces looking tidy again.

Read on for everything you need to know about finding and hiring mastic sealant services covering Waltham Cross.

Prefer us to do the searching for you? Try our quick request a quote feature and we’ll put you in touch with checked and reviewed mastic sealant services covering your area.

What is mastic sealant used for?

Mastic sealant fills gaps and prevents water, air, or dirt from entering cracks around windows, doors, bathrooms, kitchens, and external areas.

What is the difference between mastic and silicone sealant?

Mastic sealant is generally more flexible and paintable, making it ideal for interior gaps and joints.

Silicone sealant is waterproof and more durable for wet areas like bathrooms and kitchens, but it can’t usually be painted over.

How long does a mastic seal last?

A good-quality mastic seal typically lasts 5–10 years indoors. Its lifespan can be shorter in areas exposed to constant moisture or sunlight.

Is mastic sealant waterproof?

Yes, most mastic sealants are designed to be waterproof, protecting surfaces from water damage. Some types are specially formulated for wet rooms, bathrooms, and external use.

What will mastic adhere to?

Mastic can stick to a wide range of surfaces, including wood, plaster, tiles, glass, metal, and some plastics.

That said, it works best on clean, dry surfaces for a long-lasting seal.

Where can I use mastic sealant?

Mastic sealant is flexible and waterproof, meaning you can use it everywhere, from the bathroom to the roof. Here are some common uses:

  • Windows and doors
  • Sinks, showers, and baths
  • Pipes and gutters
  • Vents
  • Roof flashing
  • Gaps and cracks

Is mastic sealant easy to apply?

Mastic sealant can be applied yourself, but getting a neat, even finish is quite a knack.

Corners, curves, and tight spaces can be tricky. That’s why many homeowners prefer to hire a tradesperson for a smooth, long-lasting seal.

Why use Checkatrade?

  • Fully checked tradespeople covering your local area
  • Insurance always listed
  • Easy to compare multiple profiles
  • Handy reviews from local customers
  • Covered by the Checkatrade Guarantee (T&Cs apply)

Looking for more tradespeople in Waltham Cross?

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