Hampshire · England
Gutter, fascia & soffit sealing in Winsor, Hampshire
Gutter sealing for Winsor, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Rain getting in around a garage door
- Open joints in fascias and soffits
- Drips from gutter joints and end caps
Gutter sealing in Winsor
For gutter sealant to hold, the joint has to be clean and dry. That is why we take out the old sealant and dirt first, then dry the joint before sealing. If you are dealing with drips from gutter joints and end caps and cracked sealant along roofline trims, we can put it right, on gutter end caps, uPVC fascias and soffit joints alike.
External sealant needs dry, clean surfaces, so work around Winsor is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Our work is backed for twelve months, in Winsor and everywhere else we cover.
- Location
- Winsor (SO40)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

When something else is needed
New sealant cannot fix everything, and we’ll tell you before we start. It will not solve:
- A gutter length that has split
- Gutters that have dropped or pulled away
- Rotten or damaged fascia boards
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Gutter end caps
- uPVC fascias
- Roofline trims
- Garage door frames
- Soffit joints
- Gutter joints
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Look for streaks or damp on the wall below gutters
- Keep the gutters clear of debris
- Keep ladders off the guttering
- Don’t leave a sagging gutter
A sagging gutter needs its brackets checked. If it drops, the joints will open.
A drip from a gutter joint won’t stop on its own. The same spot gets soaked every time it rains and that can cause damp inside.
Leave it or put it right?
A new garage door isn’t needed for a leaking frame. Sealing the frame normally stops it. Where a wall is exposed, as many are in small places like Winsor, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts.
Why choose Mr Mastic in Winsor
- White, clear, grey or coloured to suit, where the product allows
- Sanitary silicone with an anti-fungal additive in wet areas
- You choose the colour before work begins
- Arbo and Everbuild products
Read our cost guide or what customers say.
What affects the quote in Winsor
Jobs vary more than people expect. The main factors:
- Working hours on commercial sites
- How much there is to do
- The number of rooms or windows
- How easy the joints are to reach
What you pay reflects the work, not guesswork. That’s why we ask about the job first and give you a clear quote before any work starts.
What to tell us for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- The type of property
- Photos by email, if that is easy
- The address or postcode of the job
- The rough size of the job
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
FAQs for Winsor
Do you work for landlords with property near Ashurst New Forest station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover Winsor for gutter sealing?
Yes, Winsor is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
How long does the job take?
Most jobs take a few hours, depending on the number of joints and the access, including preparation and clearing up. Your quote will say how long we expect yours to take.
Where are you based?
We’re based in Crawley, and we work across South East England, London and Scotland.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes an hour or two for a few joints, longer for a full run. In a small place like Winsor, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by tracing the leak and checking the gutter itself is sound.
- We clean out the joint and take out the old sealant.
- We make sure the joint is dry before sealing.
- An exterior or gutter sealant is applied to the joint.
- We look along the gutter and clear debris around the joints.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
- Let us know about earlier repairs to the joints
Getting a quote
We do not publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.
Read more
Outside joints around Winsor
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Mary include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. Rented homes near Ashurst New Forest 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 Copythorne CofE Infant School, larger buildings have long runs of movement joint that eventually need resealing.
Winsor is about 2 miles west of Totton, in Hampshire. We provide gutter sealing to householders, landlords and businesses in Winsor and nearby. Winsor is one of 683 towns and villages in Hampshire we cover. There’s also a page for Southampton, roughly 7 miles from Winsor.
We work across the SO40 postcode area for gutter sealing and the streets around it. You’ll find streets such as Winsor Road, Winsor Lane and Pound Lane, all of which we cover. If you are just outside Winsor, we cover Copythorne (1 mile north-west), Bartley (1 mile south-west), Netley Marsh (1 mile south-east), Cadnam (1 mile west) and Newbridge (1 mile north-west). Within a short drive, we also cover Winchester (14 miles north-east), Eastleigh (9 miles east), Chandler's Ford (8 miles north-east), Hedge End (11 miles east), Lymington (12 miles south) and Romsey (6 miles north-east).
What’s near Winsor
Around Winsor, our work takes us to homes and buildings near Compass Inn and the streets around them. For rail, the closest station is Ashurst New Forest station, roughly 2.7 miles south-east of the centre. Nearby you’ll also find Tatchbury Mount Hospital (1 mile east) and Eling Experience (2.7 miles east). The countryside around Winsor includes Copythorne Common.
Surface by surface
Gutter joints
Joints between gutter lengths are the most common leak point. We clean, dry and reseal them.
Soffit joints
Soffits sit under the eaves, where joints can open up. We seal them to close the gaps.
Also near Winsor
Also in Winsor
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
