Hertfordshire · England
External Mastic in Temple End
Problem with your movement joints in Temple End? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Old sealant gone brittle and cracked
- Movement joints filled with mortar instead of sealant
- Water getting into walls through failed joints
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How we handle external mastic in Temple End
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. We’re often asked to deal with joints where the bead has come unstuck and brick movement joints where the sealant has split, across copings & trims, joints between brick and frames and concrete & block.
In a village or hamlet like Temple End, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
Every job comes with our one-year guarantee.
- Location
- Temple End (SG4)
- Region
- Hertfordshire
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Temple End
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Your questions about external mastic in Temple End
Do you cover smaller places like Temple End?
Yes. Temple End 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.
Is Temple End in your area for external mastic?
Yes, Temple End is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Do you take out the old sealant first?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
How long will you be here?
A typical job takes a few hours to a few days, depending on the length of joint and the access, including the preparation. Your quote will say how long we expect yours to take.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Why act early in Temple End
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. In a small place like Temple End, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why Temple End customers choose us
- A choice of colours where the product allows
- Arbo and Everbuild products
- Sanitary silicone with an anti-fungal additive in wet areas
- Colour agreed with you before work begins
Read what affects the cost or what customers say.
What happens on the day
There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes anything from a few hours to several days, depending on the building in most cases. Somewhere like Temple End 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.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any sign-in or site rules at work premises
- Mention any tricky access
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Related advice
What the job involves on each surface
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. A primer goes on where the product requires one.
Landlord and commercial work in Temple End
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
For anyone letting property in or around Temple End, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Outside joints around 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.
For site and facilities teams at buildings such as Hitchin Boys' School, larger buildings have long runs of movement joint that eventually need resealing.
Temple End is about 2 miles south-west of Hitchin, in Hertfordshire. Homes, rented property, offices and hotels in Temple End can book us for external mastic. The work is guaranteed for a year. Our Hertfordshire coverage runs to 381 places, Temple End among them. We also work in London, around 31 miles away.
Jobs for external mastic in SG4 is quoted and booked the same way as anywhere else. Close by, we work in 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). Larger places within reach include 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).
Around Temple End
Typical jobs here are in homes near Butts Close and the streets around them. For rail, the closest station is Hitchin station, about 2.1 miles north-east. Well-known places in the area include 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.
When to call us in Temple End
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
The problems people generally mention when they call are:
- Gaps where render, brick and frames meet
- Sealant that has lost its bond to the brick or render
- Failed sealant between panels on a façade
- Joints with sealant missing in places
For landlords with property near Hitchin station, outside joints that have cracked can let damp into a rental, so check them between lets.
Before you book anyone
- What product goes in the joint
- What happens if the job turns out different
- Is VAT in the price?
- How much experience the applicator has
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Act on the first splits you see
- Do not let climbing plants root in the sealant
- Keep high-pressure jets off the joints
- Point out the joints to other trades
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead and let water in behind.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.