Hampshire · England
Downton Gutter Sealing
Gutter and fascia joints in Downton need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Trim joints where the sealant has failed
- Water running down the wall below the gutter
- Failed sealant on a garage door frame
How we handle gutter sealing in Downton
We work across Downton on leaking gutter joints and roofline trims. Low-level work is straightforward and if it’s higher up, let us know and we’ll confirm what access is needed. Typical jobs include water dripping where gutter sections meet and quick sealant fixes on gutters that didn’t last, across garage door frames, gutter joints and roofline trims.
Outside joints can only be sealed when they’re dry, so work in Downton is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Whatever the size of the job, it’s backed by our 12-month guarantee.

- Place
- Downton (SO41)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours, depending on the number of joints and the access. Somewhere like Downton needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we agree which joints need sealing.
- Each joint is cleaned and any old sealant removed.
- The joints are dried.
- We apply exterior or gutter sealant and finish it neatly.
- The joints are checked once sealed.
Before we arrive
- Clear the area around the work
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
How to get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Read more
Honest limits
We’ll always be straight with you, so here’s what sealant cannot fix:
- Cracked, split or warped gutter sections
- Leaks from the roof rather than a joint
- Sagging gutters or broken brackets
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Soffit joints
- Gutter end caps
- uPVC fascias
- Roofline trims
- Garage door frames
- Gutter joints
Why act early in Downton
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. Where a wall is exposed, as many are in small places like Downton, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.
Why choose Mr Mastic in Downton
- ARBOMaster approved applicator
- A sealant colour to suit the surroundings
- Full insurance on every job
- Neat joints and a tidy finish
Read how sealant jobs are priced and customer reviews.
Outside joints around Downton
Downton is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on gutter, fascia and roofline joints, which can dry out and crack sooner where a building faces the weather. Historic houses like Highcliffe Castle (about 4.2 miles west) are a reminder that the area around Downton 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.
Schools such as Hordle CofE (VA) Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For landlords with property near New Milton station, leaking gutter joints on a rental are best caught before they stain the walls.
Downton is about 3 miles west of Lymington, in Hampshire. Homes, rented property, offices and hotels in Downton can book us for gutter sealing. The work is guaranteed for a year. Downton is one of 683 towns and villages in Hampshire we cover. For nearby work, see our Southampton page (16 miles or so).
We cover every part of SO41 for gutter sealing and the streets around it. Gutter sealing is available to properties on Hordle Lane and Shorefield Road and the roads around them. Neighbouring places we cover for gutter sealing include Leagreen (1 mile east), Hordle (1 mile north), Ashley (2 miles north-west), Barton on Sea (2 miles west) and New Milton (2 miles north-west). Within a short drive, we also cover Totton (13 miles north), Lymington (3 miles east), Hythe (13 miles north-east), Ringwood (10 miles north-west), Dibden Purlieu (12 miles north-east) and Marchwood (13 miles north-east).
Landmarks near Downton
Around Downton, our work takes us to homes and buildings near The Arnewood School. The closest station to Downton is New Milton station, roughly 2 miles north-west of the centre. Nearby you’ll also find Lymington New Forest Hospital (3.7 miles north-east) and Sammy Miller Motorcycle Museum (2.9 miles north-west). For a walk, there’s Milford on Sea LNR.
DIY sealant or a professional job?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
When to call us in Downton
Sealant on fascias and trims weathers like any outdoor joint. It goes hard, cracks and pulls away after some years.
Signs it’s time to call us include:
- Wet patches on the wall under a gutter joint
- End caps that drip every time it rains
- Old gutter sealant that has let go
- Damp patches inside below a leaking gutter
In the older streets around Church of All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What your quote should include
- Which colour the sealant will be
- How long the guarantee is
- Who turns up on the day
- Are they insured?
Downton: your questions answered
I let a flat near New Milton station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Does living near the coast affect gutter sealing in Downton?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Will sealant fix a dripping gutter joint?
In many cases, yes. A clean, dry joint resealed with gutter sealant usually stops the drip. If the section is split or warped, it needs replacing.
Do you come to Downton?
Yes. We work in Downton and the rest of Hampshire, as part of our work across South East England, London and Scotland. To book, phone 0345 464 0079 or send us an email.
Is gutter cleaning part of the job?
We clear debris around the joints we are sealing. Full gutter cleaning is a separate job.
How long does gutter sealing take?
A typical job takes an hour or two for a few joints, longer for a full run, including preparation and clearing up. Your quote will say how long we expect yours to take.
Is sealing fascia joints something you do?
We do. Our work is the joints, and if a board is damaged, we’ll tell you.
Places near Downton
More services for Downton
How we quote for gutter sealing
There’s no set price list, because jobs vary so much. The quote depends on:
- The number and length of the joints
- Whether the work is at height
- Whether there’s mould to deal with
- When we can work, for business premises
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- The address or postcode of the job
- Any access issues, like height or stairs
- The type of property
- A few photos by email, if you can
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Check that water runs out of the downpipes
- Get leaks sealed before the wet months
- Keep the gutters clear of debris
- Check the gutters during heavy rain
Look at fascia and trim joints when you are checking the gutters. Splits are easier to seal early.
If an end cap is dripping, deal with it before winter. Water down the wall all winter can cause damp inside.
