Wokingham · England

Gardeners Green Window Mastic

Window mastic for Gardeners Green and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Whistling draughts around closed windows
  • Mastic that has split away from the wall
  • Water coming in at the bottom corners of a door

Window mastic in Gardeners Green

Landlords, agents and businesses in Gardeners Green

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.

Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.

About our window mastic in Gardeners Green

The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Common call-outs are for white mastic on grey or black frames and draughty joints inside around the window, on composite doors, patio & French doors and aluminium frames.

Somewhere as small as Gardeners Green, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

Applicator reaching up to seal an external door frame on a sunny day
Location
Gardeners Green (RG40)
Region
Wokingham
Guarantee
A year, on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

Why act early in Gardeners Green

A quick bead over the top of old mastic looks like an easy fix, but new sealant can’t bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. In a small place like Gardeners Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.

What you get with us

  • Arbo and Everbuild products
  • Sealant colour chosen to suit
  • 4.9 on Google from 180+ five-star reviews
  • Anti-fungal sanitary silicone in wet areas

Read what affects the cost and customer reviews.

The process

On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a few frames, or a day or more for a whole house. Somewhere like Gardeners Green needs a little journey planning: 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. We check how each frame can be reached safely.
  2. Old, cracked mastic is removed completely.
  3. Frame and wall are cleaned and must be dry before sealing.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. We tool the joint so water runs off, then clear up.

How to prepare

  • Tell us about any water getting in
  • Move anything stored near the joints
  • Keep children and pets away from the work area

How to get a quote

Want a quote for window mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and give you a clear price before any work starts.

Get a price

Related advice

When something else is needed

Some problems need a builder, plumber or other trade rather than us:

  • A frame that has rotted at the joint
  • Broken hinges, locks or handles
  • Damp problems in the wall away from the window

Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.

Where we work in Gardeners Green

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

Common questions in Gardeners Green

Do you cover Gardeners Green for window mastic?

Yes. We work across London and the South East, and Gardeners Green is part of that. Just phone 0345 464 0079 or email us with a few details of the job.

Do you cover smaller places like Gardeners Green?

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

How do I get a quote for window mastic in Gardeners Green?

The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.

Do you remove the old sealant?

Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.

Is the new sealant paintable?

Most silicone can’t be painted. Let us know beforehand, and we will use a paintable product where it suits.

Can resealing stop a draught around my window?

Often, yes. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.

Do you work for letting agents?

Yes, regularly. We can quote for several properties at once.

Do you guarantee window mastic?

Yes, with our 12-month guarantee. Keeping drainage clear and checking the joints yearly helps them last.

What window mastic looks like in Gardeners Green

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.

For landlords with property near Wokingham station, renewing tired window mastic between tenants heads off draught and damp complaints. If you live in an older home near St Sebastian's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Gardeners Green is about 2 miles north-west of Crowthorne, in Wokingham. Our applicators cover window mastic for homes and businesses in Gardeners Green and the surrounding area, as part of our work across Wokingham. Gardeners Green is one of 35 places in Wokingham we cover for window mastic. We also work in Reading, around 8 miles away.

We work across RG40 for window mastic. Streets in the area include Honey Hill and Heathlands Road, all of which we cover. We also cover Holme Green (1 mile north-east), Little Sandhurst (3 miles south), Barkham (3 miles west), California (3 miles south-west) and Finchampstead (3 miles south-west). Further out, we also cover Reading (8 miles north-west), Woodley (5 miles north-west), Earley (6 miles north-west), Lower Earley (5 miles north-west), Winnersh (4 miles north-west) and Newtown (7 miles north-west).

Local landmarks in Gardeners Green

Typical jobs here are in homes near Wixenford School, The Crooked Billet pub and St Crispin's School and the streets around them. The nearest railway station is Wokingham station, about 1.8 miles north-west of the centre. Nearby you’ll also find The Lexicon (3.3 miles north-east) and Pinewood Hospital (1 mile south-east). Open spaces near Gardeners Green include Holt Copse & Joel Park and Heath Lake.

Map of Gardeners Green © OpenStreetMap contributors

How to look after the new joints

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Air rooms to keep condensation down around windows
  • Do not use solvent cleaners on the joint
  • Check the mastic once a year
  • Avoid blasting the frames with a pressure washer

On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.

Leaks generally show up in wet, windy weather, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.

Do you need window mastic in Gardeners Green?

Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.

Look out for any of the following:

  • Damp patches on the reveal after heavy rain
  • Gaps between the frame and the inside reveal
  • Cold air getting in at the frame edge
  • Mastic that’s falling out in pieces

Managing a site like Saint Sebastians Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.

Before you book anyone

  • Is VAT in the price?
  • How long to leave it before use
  • What happens if they find a problem under the old sealant
  • Is the old sealant removed completely?

10 questions to ask before booking

Can I do it myself?

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job