Kent · England

Window Mastic in Snargate

Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Snargate. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Leaking joints at the ends of sills
  • Water coming in at the bottom corners of a door
  • Gaps left after new windows were fitted

Window mastic in Snargate

Window mastic in Snargate

Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on timber windows & doors, patio & French doors and uPVC windows, and people most often call us about sealant in the wrong colour for the frame and gaps where the sill meets the wall.

Around Snargate, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.

All of our work is guaranteed for twelve months, in Snargate and everywhere else we cover.

Applicator reaching up to seal an external door frame on a sunny day
Location
Snargate (TN29)
Region
Kent
Cover
12 months on all our work
Quotes
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

How we quote for window mastic

For a quick quote, just ask. What matters most is:

  • The product the joint needs
  • Mould in or behind the old joints
  • Access and height
  • Any working-time requirements on site

A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, call 0345 464 0079 or email us and we’ll give you an honest view and a quote.

What we need to know

There’s no need for technical detail. It helps if you can tell us:

  • The address or postcode of the job
  • Whether it’s a home or a business
  • Any access issues, like height or stairs
  • The problem you’ve noticed

To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.

Do you need window mastic in Snargate?

Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.

Keep an eye out for any of the following:

  • Sealant in the wrong colour for the frame
  • Leaking joints at the ends of sills
  • Rushed sealant from a window installation
  • Gaps between the frame and the inside reveal

In the older streets around Church of St Dunstan, the joint between an old wall and a newer frame is generally the first place rain gets in.

Before you book anyone

  • Which sealant they’ll use, and why
  • Whether all the old sealant comes out first
  • Whether VAT is included
  • When the joint can take water or movement

Our hiring checklist

Snargate: your questions answered

Can you do window mastic in Snargate?

Yes, Snargate is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.

Do you cover smaller places like Snargate?

Yes. Snargate is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

What information do you need?

A short description and the location, with pictures by email if possible. We’ll ask anything else we need to know.

Can you work on commercial sites?

Yes. Hotels, offices and other businesses use us, and we are fully insured.

Should I try DIY first?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.

Can you get sealant to suit coloured frames?

Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames normally suit brown.

Are you insured?

Yes, we’re fully insured.

Do I have to be there?

It depends on the job. Inside work needs someone to give us access.

Different surfaces, different methods

Patio & French doors

The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.

Window sills

Sills catch the water running down the glass, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.

What we can’t put right

A few problems are outside what sealant work can do:

  • Damp coming through the wall itself rather than the frame joint
  • A failed sealed unit that has misted up
  • Draughts through the window seals rather than the frame

If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer before you book.

Where we work in Snargate

  • Aluminium frames
  • Window sills
  • uPVC windows
  • Patio & French doors
  • Composite doors
  • Timber windows & doors

Why act early in Snargate

Choosing the product is half the job. Interior caulk and bathroom silicone aren’t made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. Where a wall is exposed, as many are in small places like Snargate, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.

Why us?

  • A 12-month guarantee on all work
  • Sanitary silicone with an anti-fungal additive in wet areas
  • Old sealant always removed completely
  • More than 20 years in sealant work

Read what affects the cost and our reviews.

Landlord and commercial work in Snargate

If you manage several properties in or around Snargate, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.

Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.

How it works

Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes a few hours for a handful of frames, longer for a whole house, depending on the size of the job. For a village or hamlet like Snargate, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. First we look at every frame and agree the list.
  2. The old mastic is cut out and the surfaces cleaned back.
  3. Where gaps are deep, backing rod goes in first.
  4. We apply a weatherproof sealant to match the frame and tool it neatly.
  5. We clear up and check every joint is fully closed.

Preparing for the visit

  • Mention any parking rules near the property
  • Clear items away from the joints we are working on
  • Keep pets and children clear of the area while we work

Ask for a quote

Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details, and photos are welcome.

Get a quick quote

Related advice

What window mastic looks like in Snargate

The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Letting a property close to Appledore (Kent) station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

Snargate is about 8 miles south of Ashford, in Kent. Snargate gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Snargate is one of 922 places in Kent where we work for window mastic. Our Brighton page covers work nearby.

Every address in TN29 is covered for window mastic. If you need window mastic at a property on Short Lane and Snargate Lane or anywhere close by, our applicators can take on the job. Neighbouring places we cover for window mastic include Brenzett (1 mile south-east), Ivychurch (2 miles east), Kenardington (3 miles north-west), Hamstreet (3 miles north) and Ruckinge (4 miles north-east). Larger places within reach include Ashford (8 miles north), Folkestone (15 miles east), Hythe (11 miles east), Hawkinge (15 miles north-east), Tenterden (7 miles north-west) and Cheriton (14 miles east).

What’s near Snargate

We work in homes and buildings around Red Lion pub and the streets around them. For rail, the closest station is Appledore (Kent) station, roughly 1.1 miles north-west. A little further out are Brenzett Aeronautical Museum (1.6 miles south-east) and Romney 'castle' (3.4 miles south-east). Not far away are Orlestone Forest.

Map of Snargate © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job