Kent · England
Gutter, fascia & soffit sealing in Cobham, Kent
Our applicators work in Cobham on sealing leaking gutter joints, end caps, fascias, soffits and roofline trims. Old sealant removed completely, joints prepared properly.
- Leaking gutter joints and stop ends
- Garage door frames letting rain in
- Gaps along fascia and soffit joints
How we handle gutter sealing in Cobham
Our work covers gutter joints and end caps as well as fascias and soffits, along with roofline trims and garage door frames. It’s joint work rather than new guttering. We work on gutter end caps, uPVC fascias and gutter joints, and people most often call us about fascia boards with gaps between them and leaking gutter joints and stop ends.
Outside joints can only be sealed when they’re dry, so work in Cobham is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
A one-year guarantee comes as standard, so you’re not left on your own once the job is done.
- Location
- Cobham (DA12)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
New gutters cost far more than a few resealed joints. Where the gutter is in good order and only a joint leaks, resealing is the sensible fix. If it’s broken or sagging, a gutter installer needs to look. Around Cobham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Why choose Mr Mastic in Cobham
- Colour picked to suit the job
- You choose the colour before work begins
- White, clear, grey or coloured to suit, where the product allows
- 4.9 on Google from 180+ five-star reviews
Take a look at how sealant jobs are priced or customer reviews.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Keep downpipes clear
- Clean out the gutters once or twice a year
- Check fascia and soffit joints for gaps
- Deal with a drip before winter
Make sure downpipes are not blocked, so water can get away. A blocked pipe backs water up to the joints.
Rain getting in round a garage door frame can damage what’s stored inside. A reseal sorts it while the frame is sound.
Surface by surface
Garage door frames
Frame-to-brick joints face the weather. We use a sealant made for outdoor joints.
Soffit joints
Soffit board joints can separate over time. We seal them to close the gaps.
What affects the cost of gutter sealing
We don’t publish a price list, because no two jobs are the same. What we look at:
- How easy the joints are to reach
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Asking for a quote
When you contact us, it’s useful to know:
- A few pictures by email, if you can
- Where the property is
- The type of property
- Roughly how big the job is
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we will take it from there.
What we do, step by step
You do not need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the work takes a few hours, depending on the number of joints and the access for a typical job. In a small place like Cobham, access is generally the main thing to plan. 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.
- We clean out the joint and take out the old sealant.
- The joint is dried, because sealant won’t bond to a wet surface.
- An exterior or gutter sealant is applied to the joint.
- The run is checked and any debris near the joints is cleared.
Getting ready for the visit
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
- Keep children and pets away from the work area
Getting a quote
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Read more
Landlord and commercial work in Cobham
For anyone letting property in or around Cobham, several properties can go on one quote. Just tell us the addresses and what each one needs.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Common questions in Cobham
I let a flat near Sole Street station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Will you come out to Cobham?
Yes, Cobham is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Can you seal fascia and soffit joints?
Yes. We seal open joints along fascias and soffits in a colour to suit.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or email us.
Do you work on high-level gutters?
It depends on the access. Tell us the height and what’s around the gutter when you phone 0345 464 0079 or drop us an email.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Nearby places to Cobham
More services for Cobham
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Outside joints around Cobham
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Cobham College (about 0.2 miles south-west) are a reminder that the area around Cobham has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Homes close to Parish Church of St Mary Magdalene include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. Rented homes near Sole Street station change hands often, and a gutter joint that drips onto the wall can turn into a damp complaint, so it’s worth checking. If you look after a building such as Cobham Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Cobham is about 3 miles south of Gravesend, in Kent. Wherever you are in the DA12 postcode area, our applicators can take on gutter sealing. 922 places in Kent are on our list. For nearby work, see our London page, about 23 miles away.
We cover every part of DA12 for gutter sealing and the streets around it. Streets in the area include The Street, Lawrence Drive and Cobhambury Road. We also cover Upper Bush (2 miles south-east), Lower Bush (2 miles south-east), Cuxton (2 miles south-east), North Halling (3 miles south-east) and Upper Halling (3 miles south). Within a short drive, we also cover Maidstone (10 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles north-west), Sevenoaks (12 miles south-west), Gravesend (3 miles north) and Tonbridge (14 miles south).
Around Cobham
Locally, jobs take us to homes and businesses close to Thamesview School, The Ship Inn and Jeskyns. The nearest railway station is Sole Street station, roughly 1.2 miles south-west of the centre. Well-known places in the area include Rochester Castle (4.3 miles east) and Gravesham Community Hospital (3.9 miles north-west). Not far away are Gad's Hill and Ranscombe Farm.