Hertfordshire · England
Window & door mastic in Temple End, Hertfordshire
Problem with your window and door frames in Temple End? We remove the old material, prepare the joints and seal them properly.
- Cracked or shrunken mastic around the frame
- Cracked sealant at the sill ends
- White mastic on grey or black frames
What happens on the day
At the end, we look at the finished work together and explain the cure time. The work normally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. In a small place like Temple End, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
How to prepare
- Tell us about any water getting in
- Clear the area around the work
- Mention if the joints have been sealed before
Ask for a quote
If you’re in Temple End and need window mastic, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Related advice
How we handle window mastic in Temple End
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. We work on patio & French doors, timber windows & doors and uPVC windows, and people most often call us about whistling draughts around closed windows and old mastic that has gone black or come away.
In a village or hamlet like Temple End, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
We stand behind the work with a one-year guarantee, so you are covered after we’ve gone.
- Place
- Temple End (SG4)
- Wider area
- Hertfordshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
Working on frames from a ladder with a sealant gun is not easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Where a wall is exposed, as many are in small places like Temple End, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Combining jobs into one visit normally makes better use of the time than several visits. We will give you a clear quote for the lot.
Why choose Mr Mastic in Temple End
- Full insurance on every job
- One-year guarantee on every job
- Anti-fungal sanitary silicone in wet areas
- Old sealant always removed completely
Take a look at what affects the cost or customer reviews.
What we’re called out for in Temple End
Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
The most common problems we see are:
- Old mastic that has gone black or come away
- Cracked internal joints between frame and plaster
- A bead that doesn’t match the frame
- Draughts coming in around windows and doors
For site and facilities teams at buildings such as Hitchin Boys' School, its window and door frames need their mastic kept sound, just like a home’s.
Before you book anyone
- The length of the guarantee
- When the joint can take water or movement
- Whether they seal over old material or remove it
- How the surfaces are prepared before sealing
Temple End questions
Can you help a landlord with a rental near Hitchin station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Is Temple End within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
How long will my window job take?
A few frames take a few hours, while a whole house takes longer. We confirm the timing with your quote.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Is it OK to seal over old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint before we leave.
Nearby places to Temple End
Also in Temple End
What the job involves on each surface
Window sills
Stone and concrete sills have their own joints, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Patio & French doors
Water at the foot of a door frame is not always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
What affects the cost of window mastic
We quote each job individually. This is what makes a difference:
- Whether old sealant or filler has to be cut out
- The type of sealant required
- The size of the job
- How many rooms, windows or areas are involved
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
What to tell us for a quote
When you call or email, it’s useful to know:
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- Pictures of the joints, sent by email
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear price before work begins.
Can I do it myself?
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 fails, we can still redo it.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Honest limits
To be straight with you, some problems need a different trade:
- Faulty window hardware
- Condensation trapped between the panes
- Damp coming through the wall itself rather than the frame joint
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
What we seal
- Composite doors
- Timber windows & doors
- Window sills
- Patio & French doors
- Aluminium frames
- uPVC windows
What window mastic looks like in Temple End
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Hitchin station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Temple End is about 2 miles south-west of Hitchin, in Hertfordshire. Whether you are in the middle of Temple End or further out, we cover window mastic for every kind of property. Our Hertfordshire coverage runs to 381 places, Temple End among them. You can also see our page for London, about 31 miles away.
All of SG4 is within our area for window mastic, from the main roads to the quietest streets. Neighbouring places we cover for window mastic include Great Offley (2 miles west), Ley Green (2 miles south), The Flints (2 miles west), Pirton (3 miles north-west) and Pegsdon (3 miles north-west). We also work in nearby towns such as Hemel Hempstead (14 miles south-west), Stevenage (5 miles east), St Albans (13 miles south), Welwyn Garden City (10 miles south-east), Harpenden (8 miles south) and Hatfield (12 miles south).
Landmarks near Temple End
In Temple End, that means homes and buildings near Butts Close and the streets around them. Temple End’s nearest station is Hitchin station, about 2.1 miles north-east of the centre. A little further out are Lister Hospital (3.8 miles east) and North Hertfordshire Museum (1.4 miles north-east). For a walk, there’s Markham's Hill and Oughtonhead Nature Reserve.