Hertfordshire · England
Window Mastic in Green Tye
Mastic around window and door frames, sills and patio doors for Green Tye, backed by a 12-month guarantee. Call for a quick quote.
- Mastic that has split away from the wall
- Draughts coming in around windows and doors
- Leaking joints at the ends of sills
What the job involves on each surface
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A neat, narrow bead in a colour to match suits the frame.
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall.
Window mastic for homes and businesses in Green Tye
From a single sill to a whole house of windows, the work is priced before anything is done. To get one, ring 0345 464 0079 or send us an email with the number of frames and any access details. We’re often asked to deal with black, perished sealant on frames and sealant in the wrong colour for the frame, across composite doors, uPVC windows and window sills.
Around Green Tye, 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 guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Green Tye (SG10)
- Wider area
- Hertfordshire
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Also in Green Tye
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Green Tye questions
Do you work for landlords with property near Bishops Stortford station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Do you cover Green Tye for window mastic?
Yes, Green Tye is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Is the new sealant paintable?
Not generally, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Why deal with it now?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Where a wall is exposed, as many are in small places like Green Tye, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Why us?
- Rated 4.9 stars on Google
- Colour agreed with you before we start
- White, clear, grey or another colour, product permitting
- Anti-fungal sanitary silicone in wet areas
Read our cost guide and customer reviews.
What window mastic looks like in Green Tye
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Much Hadham Palace (about 1.3 miles north-west) are a reminder that the area around Green Tye has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
For landlords with property near Bishops Stortford station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you live in an older home near Church of St Thomas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Green Tye is about 3 miles south-west of Bishop's Stortford, in Hertfordshire. If you need window mastic in Green Tye, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Hertfordshire from our Crawley base. Green Tye is one of 381 places in Hertfordshire we cover for window mastic. Chelmsford is on our list too, around 18 miles away.
Every address in SG10 is within our area for window mastic, from the main roads to the quietest streets. If you’re just outside Green Tye, we cover Hadham Cross (1 mile west), Much Hadham (1 mile north-west), Nether Street (2 miles south-west), Hadham Ford (2 miles north) and Widford (2 miles south-west). Within a short drive, we also cover Stevenage (13 miles west), Bishop's Stortford (3 miles north-east), Welwyn Garden City (13 miles west), Hoddesdon (8 miles south-west), Cheshunt (11 miles south-west) and Hatfield (15 miles west).
Local landmarks in Green Tye
Green Tye’s nearest station is Bishops Stortford station, about 3.2 miles north-east. Nearby you’ll also find Herts and Essex Hospital (3.6 miles north-east) and Henry Moore Studios and Gardens (0.8 miles south-west). Green spaces nearby include Thorley Wash nature reserve.
How the visit works
The work is kept neat and contained to the joints we’re treating. The job usually takes a few hours for a handful of frames, longer for a whole house, and we explain the cure time before we leave. For a village or hamlet like Green Tye, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Mention if the joints have been sealed before
- Tell us about any water getting in
- Let us know about parking restrictions
Ask for a quote
If you are in Green Tye and need window mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
What affects the cost of window mastic
There’s no set price list. The quote depends on:
- Whether the work is at height
- The type of sealant required
- How many areas need sealing
- Whether there’s mould to deal with
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Asking for a quote
What to tell us when you ask for a quote:
- Where the property is
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
Looking after it afterwards
So the new joints stay in good condition:
- Look round the frames every year or so
- Keep paint and stain on wooden frames in good order
- Wash the frames with mild soapy water
- 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. Paint up to the joint, not over the silicone.
Leaks usually show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.