Essex · England

Window Mastic in Tarpots

Mastic around window and door frames, sills and patio doors in Tarpots, with a one-year guarantee on every job. Call for a quick quote.

  • Sealant in the wrong colour for the frame
  • Gaps where the sill meets the wall
  • Gaps left after new windows were fitted

Trusted window mastic in Tarpots

DIY versus a professional finish

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.

How we handle window mastic in Tarpots

Around Tarpots we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on timber windows & doors, uPVC windows and patio & French doors, and people most often call us about damp patches on the reveal after heavy rain and leaking joints at the ends of sills.

Around Tarpots, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.

The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Tarpots (SS7)
Wider area
Essex
Guarantee
One year on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

What we do, step by step

There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes a morning for a couple of windows and a door from start to finish. Somewhere as small as Tarpots, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we look at every frame and agree the list.
  2. Next the failed sealant is cut away and the joint cleaned.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. Finally we tidy up and check each joint.

Before we arrive

  • Mention any parking rules near the property
  • Tell us about any water getting in
  • For business premises, tell us about site rules or sign-in

Getting a quote

Want a quote for window mastic? Please call 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before work begins.

Get a price

Related advice

Leave it or put it right?

Resealing frames is a short job: the visit takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. Around Tarpots, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Combining jobs into one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.

Why choose Mr Mastic in Tarpots

  • Neat joints and a tidy finish
  • More than 20 years in sealant work
  • Colour picked to suit the job
  • Approved under the ARBOMaster scheme

See our cost guide and customer reviews.

How the job changes by surface

Timber windows & doors

Soft or rotten wood cannot be sealed successfully. If we find rot, we’ll tell you before going ahead, as that’s a job for a joiner.

uPVC windows

We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall.

Windows and doors in Tarpots

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 an older house near a landmark such as St George, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as The Appleton School, the mastic around its windows and doors needs looking after like any other building’s.

Tarpots is about 1 mile west of Thundersley, in Essex. We provide window mastic to householders, landlords and businesses in Tarpots and nearby, as part of our work across Essex. 644 places in Essex are on our list. Chelmsford is on our list too, around 12 miles away.

Here we cover the SS7 postcode area for window mastic. That includes homes and businesses on London Road, Hatley Gardens and High Road and the roads around them. Other places close to Tarpots include South Benfleet (1 mile south-east), North Benfleet (1 mile north-west), Thundersley (1 mile east), Bowers Gifford (1 mile west) and Pitsea (2 miles west). We also work in nearby towns such as Chelmsford (12 miles north), Basildon (4 miles west), Brentwood (11 miles west), Maldon (13 miles north-east), Canvey Island (3 miles south-east) and Billericay (7 miles north-west).

What’s near Tarpots

In Tarpots, that means homes and buildings near Jotmans Hall Primary School, among other places. The closest station to Tarpots is Benfleet station, roughly 1.6 miles south of the centre. Nearby you’ll also find The Motor Boat Museum (3 miles west) and Chartwell Private Hospital (3.8 miles east). Green spaces nearby include Bowers Marsh RSPB Reserve.

Map of Tarpots © OpenStreetMap contributors

Questions from Tarpots

I let a flat near Benfleet station. Can you help?

Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.

Can you do window mastic in Tarpots?

Yes, Tarpots is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.

Are you ARBOMaster approved?

Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.

Can new sealant go over the old?

No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.

Do you take out the old sealant first?

Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

Can new window sealant be painted?

Most silicone cannot be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.

Do I have to be there?

If the work is inside, we need someone to let us in. After that, you can carry on with your day.

Where do you work from?

We work from Crawley. We cover Tarpots and the rest of Essex.

For landlords and businesses

In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.

We regularly work with letting and managing agents. Tell us the address, the job and how access works.

When to call us in Tarpots

A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.

The most common problems we see are:

  • Whistling draughts around closed windows
  • Cracked sealant at the sill ends
  • Mastic that has split away from the wall
  • Old mastic that has gone black or come away

For landlords with property near Benfleet station, renewing tired window mastic between tenants heads off draught and damp complaints.

What to look for in a quote

  • Whether the sealant suits the joint
  • What the quote includes, VAT included or not
  • Who turns up on the day
  • The length of the guarantee

How to choose a mastic man

Keeping the joints in good condition

No joint lasts for ever, but care makes a real difference. A few tips:

  • Look round the frames every year or so
  • Wipe condensation off the frames
  • Use gentle cleaners on frames and sealant
  • Keep paint and stain on wooden frames in good order

Keep sill grooves and drainage slots clear, so rain drains out rather than building up at the sealant.

Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. Resealing closes it.

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