Oxfordshire · England
Gutter, fascia & soffit sealing in Crawley, Oxfordshire
Professional gutter sealing in and around Crawley, with every bit of old sealant taken out first.
- Leaking gutter joints and stop ends
- Trim joints where the sealant has failed
- Stop ends leaking at the end of a run
DIY versus a professional finish
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, and the work is guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Gutter sealing for homes and businesses in Crawley
Gaps along uPVC fascias and soffits look untidy and can let in water and draughts. They’re sealed in a matching colour where possible. We work on gutter joints, gutter end caps and garage door frames, and the jobs we see most are garage door frames letting rain in and drips from gutter joints and end caps.
Somewhere as small as Crawley, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
Every job is covered by a one-year guarantee, wherever you are in Oxfordshire.
- Location
- Crawley (OX29)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Crawley
Can you do gutter sealing in Crawley?
Yes, Crawley is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
I let a flat near Finstock station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you offer different sealant colours?
Usually, yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before work begins.
Can you seal fascia and soffit joints?
Yes. Open joints along uPVC fascias and soffits can be sealed in a matching colour.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Will sealing fix a sagging gutter?
No. A sagging gutter pulls its joints apart, so the brackets need fixing first.
Why it’s worth doing now in Crawley
Sealing over a dirty, wet joint is a quick fix that rarely lasts, but it soon lets go. Cleaning out and drying the joint first is what makes it last. In a small place like Crawley, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why Crawley customers choose us
- Tidy, careful work
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal sanitary silicone in wet areas
- 20+ years of sealant experience
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
How we quote for gutter sealing
We do not publish a price list, because jobs vary so much. What we look at:
- The type of sealant required
- When we can work, for business premises
- Access and height
- How much old sealant there is and how hard it is to remove
Combining jobs into one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
What to tell us for a quote
To help us quote quickly, please include:
- If someone has resealed it before
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- The type of property
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before we start.
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Sort out a dripping joint early
- Watch for drips in a downpour
- Look along the fascias for open joints
- Watch the wall under the gutters for staining
Look at fascia and trim joints when you are checking the gutters. Splits are easier to seal early.
Rain getting in round a garage door frame can damage what’s stored inside. A reseal sorts it while the frame is sound.
Do you need gutter sealing in Crawley?
Sealant laid on a wet or dirty joint fails early. Rushed repairs often don’t last long for this reason.
Signs it’s time to call us include:
- Damp patches inside below a leaking gutter
- Wet patches on the wall under a gutter joint
- Earlier gutter repairs that have peeled off
- Fascia boards with gaps between them
If you look after a building such as Hailey Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Before booking anyone
- Is VAT in the price?
- How much experience the applicator has
- Whether you can choose the colour
- Whether they’re fully insured
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. It normally takes an hour or two for a few joints, longer for a full run. Somewhere as small as Crawley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we find the drip and check the gutter isn’t cracked or sagging.
- Old sealant and dirt are removed from the joint.
- The area is dried so the sealant can bond.
- An exterior or gutter sealant is applied to the joint.
- The run is checked and any debris near the joints is cleared.
Before we arrive
- On commercial sites, let us know about site rules
- Keep pets and children clear of the area while we work
- Mention any leaks or damp you’ve noticed
How to get a quote
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details.
Related advice
Outside joints around Crawley
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Minster Lovell Hall (about 1.1 miles west) are a reminder that the area around Crawley has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Letting a property close to Finstock station? Then leaking gutter joints on a rental are best caught before they stain the walls. If you live in an older home near Church of St John the Evangelist, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Crawley is about 1 mile north-west of Witney, in Oxfordshire. Across the OX29 area, we cover gutter sealing for homes and businesses. Crawley is one of 443 places in Oxfordshire where we work. Oxford is on our list too, around 12 miles away.
Work in OX29 is quoted and booked the same way as anywhere else. If you need gutter sealing at a property on Witney Hill, Farm Lane and Foxburrow Lane or anywhere close by, our applicators can take on the job. Other places close to Crawley include Leafield (2 miles north-west), Swinbrook (4 miles west), Ascott d'Oyley (4 miles north-west), Ascott-under-Wychwood (5 miles north-west) and Ascott Earl (5 miles north-west). Within a short drive, we also cover Oxford (12 miles east), Abingdon-on-Thames (13 miles south-east), Carterton (5 miles south-west), Wantage (15 miles south), Grove (14 miles south) and Faringdon (11 miles south).
What’s near Crawley
In Crawley, that means homes and buildings near Wood Green School and The Lamb Inn. For rail, the closest station is Finstock station, roughly 3.6 miles north-east of the centre. Nearby you’ll also find Cogges Manor Farm Museum (1.9 miles south-east). Open spaces near Crawley include Blenheim Farm.