Hampshire · England
Gutter, fascia & soffit sealing in Newtown, Hampshire
Gutter sealing in Newtown from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Wet patches on the wall under a gutter joint
- Failed sealant on a garage door frame
- Earlier gutter repairs that have peeled off
How the job changes by surface
uPVC fascias
Fascia board joints can open up. They’re sealed tidily in a suitable colour.
Gutter joints
Joints between gutter lengths are the most common leak point. They’re cleaned out, dried and resealed.
Gutter sealing in Newtown
Across Newtown, we reseal gutter joints, end caps and roofline trims. Single-storey and low gutters are simple to reach, and for higher work, tell us about access and we will confirm what’s needed. We work on uPVC fascias, roofline trims and garage door frames, and people most often call us about water dripping where gutter sections meet and rain getting in around a garage door.
Around Newtown, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
Our work is backed for twelve months.
- Place
- Newtown (PO17)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026

Leave it or put it right?
You do not need to replace a garage door because rain gets in round the frame. Resealing the frame joint is often enough. In a small place like Newtown, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
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.
Why choose Mr Mastic in Newtown
- Full insurance on every job
- Colour picked to suit the job
- Sanitary silicone with an anti-fungal additive in wet areas
- White, clear, grey or another colour, product permitting
See our cost guide and customer reviews.
Common questions in Newtown
Do you cover Newtown for gutter sealing?
Yes, Newtown is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear quote.
Do you work for landlords with property near Portchester station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
How do I get a quote for gutter sealing in Newtown?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
What about gutters on a second or third storey?
That depends on the building. Let us know the height and the ground below when you ring 0345 464 0079 or drop us an email.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses and we are fully insured.
Towns and villages near Newtown
Also in Newtown
Common problems we fix in Newtown
Gutter joints depend on seals that wear out. Sun and cold make the gutter expand and contract and that movement opens up tired joints.
Keep an eye out for any of the following:
- End caps that drip every time it rains
- Failed sealant on a garage door frame
- Leaking gutter joints and stop ends
- Old sealant on roofline trims that has split
Homes close to Church of the Holy Trinity include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
What to look for in a quote
- Whether you can choose the colour
- How the joint is cleaned and prepared
- What the cure time is
- Whether they seal over old material or remove it
What happens on the day
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. It normally takes anything from an hour or two to a few hours. In a small place like Newtown, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- Gutter or exterior sealant is applied and finished.
- We check the run and clear any debris we find while we’re there.
Preparing for the visit
- Keep children and pets away from the work area
- Let us know about parking restrictions
- Mention if the joints have been sealed before
Get a quote
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or drop us an email and describe the job and send photos if you have them.
Advice
Landlords, agents and businesses in Newtown
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
For anyone letting property in or around Newtown, several properties can be quoted together. Send us the addresses and the work at each, and pictures by email help.
What gutter sealing looks like in Newtown
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Newtown Soberton Infant School? Then larger buildings have long runs of movement joint that eventually need resealing. For landlords with property near Portchester station, leaking gutter joints on a rental are best caught before they stain the walls.
Newtown is about 5 miles north-west of Waterlooville, in Hampshire. From the centre of Newtown to the outskirts, we cover gutter sealing for every kind of property. 683 places in Hampshire are on our list, large and small. We also work in Portsmouth, around 8 miles away.
Our applicators cover all of the PO17 postcode area for gutter sealing. Whether your property is on Church Road, Hundred Acres Road and Ingoldfield Lane or a nearby road, we can help. We also cover Southend (1 mile north-east), Soberton Heath (1 mile north), Hoe Gate (1 mile east), Hipley (1 mile south-east) and Woodend (1 mile north-west). We also work in nearby towns such as Winchester (13 miles north-west), Gosport (8 miles south), Havant (7 miles south-east), Eastleigh (10 miles west), Fareham (5 miles south-west) and Horndean (5 miles east).
Local landmarks in Newtown
We work in homes and buildings around The Bold Forester Public House. The closest station to Newtown is Portchester station, about 4.4 miles south of the centre. Well-known places in the area include Knowle Hospital (3.8 miles south-west). The countryside around Newtown includes St Clair's Meadow and Portsdown Hill.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Have sagging gutters refixed early
- Check fascia and soffit joints for gaps
- Keep an eye out for wet patches below a joint
- Look at the gutters while it’s raining
While checking gutters, glance at the fascia joints too. 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.
What affects the cost of gutter sealing
Your quote is based on your job. We take into account:
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- The number and length of the joints
- The old material and how stubborn it is
Leaving a failed joint generally makes the job bigger, not smaller. If you are unsure, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Helping us quote
When you call or email, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- A few pictures by email, if you can
- The address or postcode of the job
- The type of property
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.
