Hampshire · England
Lower Upham Gutter Sealing
We cover Lower Upham for sealing leaking gutter joints, end caps, fascias, soffits and roofline trims. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Fascia boards with gaps between them
- Old sealant on roofline trims that has split
- Garage door frames letting rain in
How we handle gutter sealing in Lower Upham
We work across Lower Upham on leaking gutter joints and roofline trims. Low-level work is straightforward and if it’s higher up, let us know and we will confirm what access is needed. We work on uPVC fascias, soffit joints and garage door frames, and people most often call us about water dripping where gutter sections meet and streaks down the brickwork from a leaking joint.
Around Lower Upham, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.
Each job carries a 12-month guarantee.

- Location
- Lower Upham (SO32)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Lower Upham: your questions answered
Can you help a landlord with a rental near Hedge End station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Is Lower Upham within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Will sealant fix a dripping gutter joint?
Most of the time. A sagging or cracked gutter needs more than sealant, and we’ll tell you.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we are using and why.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
What should I tell you?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Rest ladders on the wall, not the gutter
- Keep the gutters clear of debris
- Check that water runs out of the downpipes
- Keep an eye out for wet patches below a joint
Keep downpipes clear so the gutter can drain. Blockages push water back along the gutter.
A leaking stop end is best sealed before the wet months. A winter of drips can lead to damp patches.
How it works
We keep the work tidy and contained to the area we are working on, so you can get on with your day. Expect the work to take an hour or two for a few joints, longer for a full run. Somewhere as small as Lower Upham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We find where the water is coming from and check the gutter is sound.
- The old sealant and dirt are cleaned out of the joint.
- We dry the joint so the new sealant can bond.
- A gutter sealant is applied to the joint.
- We check the run and clear debris near the joints.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Mention any tricky access
- Try not to wet indoor joints just before the visit
How to get a quote
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before we start.
Related advice
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
Also near Lower Upham
More services for Lower Upham
Gutter sealing in Lower Upham: local notes
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.
Managing a site like Upham Church of England Aided Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For landlords with property near Hedge End station, a gutter joint that drips onto the wall can turn into a damp complaint, so it’s worth checking.
Lower Upham is about 4 miles east of Eastleigh, in Hampshire. Homes, rented property, offices and hotels in Lower Upham can book us for gutter sealing, old or new, large or small. Every job comes with our one-year guarantee. Our area takes in 683 places across Hampshire, large and small. There’s also a page for Southampton, roughly 7 miles from Lower Upham.
Jobs for gutter sealing in SO32 is quoted and booked the same way as anywhere else. We cover properties on Upham Street, Winchester Road and Portsmouth Road. Close by, we work in Wintershill (1 mile south), Upham (1 mile north-east), Durley Street (1 mile south), Ashton (1 mile east) and Fair Oak (2 miles west). Further out, we also cover Winchester (6 miles north-west), Gosport (13 miles south), Havant (14 miles south-east), Eastleigh (4 miles west), Fareham (9 miles south) and Horndean (11 miles south-east).
Near you in Lower Upham
In Lower Upham, that means homes and buildings near Wyvern Technology College. Lower Upham’s nearest station is Hedge End station, about 3.4 miles south-west. Nearby you will also find Bishop's Waltham Museum (2.2 miles south-east) and Moorgreen Hospital (4.4 miles south-west). For a walk, there’s Bishops Waltham Branch LNR and Twyford Down.
What affects the cost of gutter sealing
For a quick quote, just ask. What matters most is:
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- The number of rooms or windows
- The type of sealant required
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
Asking for a quote
To make quoting easier, let us know:
- The type of property
- How many joints, rooms or windows are involved
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or send us an email.
Why deal with it now?
A bead squeezed onto a wet joint might hold for a while but it tends to peel off. Cleaning out and drying the joint first is what makes it last. In a small place like Lower Upham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and give you a clear quote before work begins.
Why choose Mr Mastic in Lower Upham
- Approved under the ARBOMaster scheme
- We are fully insured
- We agree the colour with you first
- White, clear, grey or another colour, product permitting
Take a look at how sealant jobs are priced and customer reviews.
What we’re called out for in Lower Upham
Water spilling over a blocked gutter is often mistaken for a leak. If the downpipe is blocked, water has nowhere to go, which is why we look before we seal.
Any of these means the joints need attention:
- Water dripping where gutter sections meet
- Rain getting in around a garage door
- Trim joints where the sealant has failed
- Damp patches inside below a leaking gutter
If you live in an older home near Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What your quote should include
- Whether you can choose the colour
- The length of the guarantee
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
Honest limits
New sealant can’t fix everything, and we’ll tell you before work begins. It will not solve:
- Leaks from the roof rather than a joint
- Downpipes that are blocked or broken
- A gutter length that has split
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Roofline trims
- Gutter end caps
- Gutter joints
- uPVC fascias
- Soffit joints
- Garage door frames
