Hampshire · England
Gutter Sealing in St Cross
Our applicators work in St Cross on sealing leaking gutter joints, end caps, fascias, soffits and roofline trims. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Wet patches on the wall under a gutter joint
- Stop ends leaking at the end of a run
- Quick sealant fixes on gutters that didn’t last
Gutter sealing in St Cross, done properly
A leaking gutter joint marks the wall and wets the ground underneath. Resealing the joint is often all it needs if the gutter isn’t damaged. We work on gutter joints, gutter end caps and roofline trims, and the jobs we see most are garage door frames letting rain in and old sealant on roofline trims that has split.
In and around St Cross, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
You get a one-year guarantee, the same in St Cross as everywhere else we work.
- Place
- St Cross (SO22, SO23)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Do you need gutter sealing in St Cross?
Gutter joints rely on seals that age. Temperature changes make gutters move and that movement opens up tired joints.
Most people get in touch when they notice one of these:
- Garage door frames letting rain in
- Wet patches on the wall under a gutter joint
- Leaking gutter joints and stop ends
- Trim joints where the sealant has failed
In the older streets around St. Cross Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- How the joint is cleaned and prepared
- Is VAT in the price?
- Whether they’re fully insured
- Which sealant they’ll use, and why
Also near St Cross
What else we do in St Cross
Outside joints around St Cross
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Winchester station change hands often, and a gutter joint that drips onto the wall can turn into a damp complaint, so it’s worth checking. For site and facilities teams at buildings such as St Faith's Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s.
St Cross is about 1 mile south of Winchester, in Hampshire. We provide gutter sealing to homeowners, landlords and businesses in St Cross. We cover 683 towns and villages across Hampshire. Our Southampton page covers work nearby (10 miles or so).
Postcode districts we cover here for gutter sealing: SO22 and SO23. If you need gutter sealing at a property on Edgar Road, Hubert Road and Grange Road or anywhere close by, we can help. If you are just outside St Cross, we cover Badger Farm (1 mile west), Stanmore (1 mile north-west), Winchester (1 mile north), Bar End (1 mile east) and Highcliffe (1 mile north-east). Further out, we also cover Eastleigh (6 miles south), Fareham (15 miles south), Andover (13 miles north-west), Totton (12 miles south-west), Chandler's Ford (5 miles south-west) and Hedge End (9 miles south).
Local landmarks in St Cross
Typical jobs here are in homes near St. Cross Park, The Bell Inn Public House and Kings' School. The nearest railway station is Winchester station, roughly 1.3 miles north. Well-known places in the area include The Gurkha Museum (0.6 miles north-east) and Royal Hampshire County Hospital (0.9 miles north). The countryside around St Cross includes Hockley Meadows and Twyford Down.
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes an hour or two for a few joints, longer for a full run and we leave things clean and tidy. In a smaller place like St Cross, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- 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 will not bond to a wet surface.
- We seal the joint with a sealant made for gutters and outdoor use.
- The run is checked and any debris near the joints is cleared.
Preparing for the visit
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
Get a quote
We quote each job on its own, so the first step is telling us about yours. Simply call 0345 464 0079 or drop us an email and describe the job.
Read more
What the job involves on each surface
Roofline trims
Trims along the roofline are often finished with sealant. When it splits, water can get behind.
Gutter joints
Joints between gutter lengths are the most common leak point. They’re cleaned out, dried and resealed.
What sealant work can’t fix
Before booking, it’s worth knowing the limits too:
- Sagging gutters or broken brackets
- Roof leaks, slipped tiles or failed flashing (a roofer’s job)
- A gutter length that has split
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Soffit joints
- uPVC fascias
- Garage door frames
- Roofline trims
- Gutter end caps
- Gutter joints
St Cross: your questions answered
Can you help a landlord with a rental near Winchester station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Can you do gutter sealing in St Cross?
Yes, St Cross is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Where are you based?
We work from Crawley. We cover St Cross and the rest of Hampshire.
Do you seal gaps in fascias and soffits?
Yes. Open joints along uPVC fascias and soffits can be sealed in a colour to suit.
Will you clear out my gutters?
We clear what’s around the joints we work on. A full clean of the gutters is not part of it.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Can sealant stop a sagging gutter leaking?
Sealant won’t hold a sagging gutter. The gutter needs refixing by a gutter installer, and we’ll tell you if that is what we find.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
How we quote for gutter sealing
Your quote is based on your job. We take into account:
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- Any mould that needs treating
- How many rooms, windows or areas are involved
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- What’s wrong with the joints now
- The address or postcode of the job
- Photos by email, if that is easy
- Whether it’s a home or a business
Want a quote for gutter sealing? Please ring 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and give you a clear quote before we start.
What happens if it’s left?
A new garage door is not needed for a leaking frame. Sealing the frame generally stops it, if the frame itself is sound. Homes in smaller places like St Cross can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in St Cross
- Tidy, careful work
- A 12-month guarantee on all work
- We’re fully insured
- Experience in homes, commercial sites and hotels
See our cost guide or what customers say.
Work for landlords, hotels and businesses
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
We also work for property managers and facilities teams in St Cross and across Hampshire. We can quote a run of properties together, and we’re fully insured for the work.