Buckinghamshire · England
Gutter, fascia & soffit sealing in Dunton, Buckinghamshire
Gutter sealing in Dunton from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Dripping gutter ends
- Rain getting in around a garage door
- Wet patches on the wall under a gutter joint
About our gutter sealing in Dunton
It’s easy to live with a dripping gutter joint, but each shower sends water to the same place. Sealing it is quick while the gutter is still sound. We work on gutter joints, soffit joints and gutter end caps, and common reasons people get in touch are gaps along fascia and soffit joints and water running down the wall below the gutter.
External sealant needs dry, clean surfaces, so work around Dunton is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.
- Place
- Dunton (MK18)
- Wider area
- Buckinghamshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Surface by surface
Garage door frames
Failed sealant around a garage door frame lets water in. We cut it out and reseal.
Gutter joints
A gutter joint has to cope with movement and standing water. A dedicated gutter sealant suits them.
How it works
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The job generally takes anything from an hour or two to a few hours. Somewhere like Dunton needs a little journey planning: 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 trace the drip and check the gutter is not damaged.
- We remove the old sealant and clean the joint.
- The joint is dried before sealing.
- We seal the joint with a sealant made for gutters.
- We check the run and clear debris near the joints.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
Get a quote
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or drop us an email with the details and send pictures if you have them.
Advice
What we are called out for in Dunton
Sealant on fascias and trims weathers like any outdoor joint. It goes hard, cracks and pulls away after some years.
It’s worth asking for a quote if you see:
- Trim joints where the sealant has failed
- Old gutter sealant that has let go
- Damp patches inside below a leaking gutter
- Wet patches on the wall under a gutter joint
Around Dunton, as everywhere, gutter sealing is only as good as the preparation behind it.
Questions to ask before booking
- Which colour the sealant will be
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
- What the cure time is
Towns and villages near Dunton
Other services in Dunton
What happens if it’s left?
You do not need new fascias just because the joints have opened. Sealing the joints tidies them up if the boards are sound. In a small place like Dunton, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why Dunton clients choose us
- Colour agreed with you before any work starts
- Tidy, careful work
- A choice of colours where the product allows
- Approved under the ARBOMaster scheme
Take a look at our cost guide or what customers say.
What affects the cost of gutter sealing
You’ll get a clear quote before we start. It takes into account:
- Access and height
- When we can work, for business premises
- The product the joint needs
- Mould in or behind the old joints
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What we need to know
You don’t need to know the technical terms. Just tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- Where the job is, and your postcode
- Any access issues, like height or stairs
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
Outside joints around Dunton
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. Historic houses like Ascott House (about 4.4 miles east) are a reminder that the area around Dunton has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
Homes close to Church of St Martin include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Dunton is about 6 miles north of Aylesbury, in Buckinghamshire. Anywhere in MK18, we cover gutter sealing for homes and businesses. Our Buckinghamshire coverage runs to 263 places, and Dunton is one of them. Our Oxford page covers work nearby (21 miles or so).
All of MK18 is within our area for gutter sealing, from the main roads to the quietest streets. Other places close to Dunton include Swanbourne (2 miles north-west), Mursley (3 miles north), Granborough (3 miles west), Winslow (4 miles north-west) and Little Horwood (4 miles north). Further out, we also cover Aylesbury (6 miles south), Buckingham (10 miles north-west), Elmhurst (6 miles south), Southcourt (7 miles south), Princes Risborough (13 miles south) and Haydon Hill (6 miles south).
Local landmarks in Dunton
A little further out are Tindal Centre (6 miles south) and Bolbec Castle (2.5 miles south-west).
Landlords, agents and businesses in Dunton
If you manage several properties in or around Dunton, several properties can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
Letting agents and landlords in Dunton can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Your questions about gutter sealing in Dunton
Do you cover smaller places like Dunton?
Yes. Dunton is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do gutter sealing in Dunton?
Yes. We work across London and the South East, and Dunton is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
What should I tell you?
A short description and the location, plus pictures if you have them. If we need more, we will ask.
How long does gutter sealing take?
Typically it takes an hour or two for a few joints, longer for a full run. Larger jobs naturally take longer.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses.
Can a leaking gutter joint be sealed?
Most of the time. If the gutter is sagging or cracked, sealing will not last and we will say so.
Do you install new fascias or gutters?
No. We seal joints and replacement is a job for an installer.
Can I do it myself?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
