Hampshire · England
Knapp Gutter Sealing
Gutter sealing across Knapp and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Cracked sealant along roofline trims
- Quick sealant fixes on gutters that didn’t last
- Streaks down the brickwork from a leaking joint
About our gutter sealing in Knapp
A lot of gutter leaks come down to one tired joint. The joint is cleaned, dried and resealed using a gutter sealant. If the gutter itself has failed, we say so. We work on garage door frames, soffit joints and gutter end caps, and people most often call us about quick sealant fixes on gutters that didn’t last and streaks down the brickwork from a leaking joint.
Outside joints can only be sealed when they’re dry, so work in Knapp is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Knapp (SO51)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Gutter end caps
Stop ends hold back water at the end of a run. A failed seal makes them leak.
uPVC fascias
Fascia board joints can open up. They’re sealed tidily in a suitable colour.
Landlord and commercial work in Knapp
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
How we quote for gutter sealing
The quote reflects the job in front of us. We look at:
- Which sealant suits the joint
- How many areas need sealing
- The old material and how stubborn it is
- Working hours on commercial sites
Instead of a standard rate, 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.
What to tell us for a quote
To make quoting easier, let us know:
- How we’d reach the joints
- Roughly how big the job is
- Whether it has been sealed before
- Where the property is
Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job, and we’ll come back to you with a quote.
Knapp buildings and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Church of St Mark, the joints between older walls, newer extensions and the roofline need a sealant that can move. Rented homes near Chandlers Ford station change hands often, and a gutter joint that drips onto the wall can turn into a damp complaint, so it’s worth checking. Managing a site like Ampfield Church of England Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
Knapp is about 2 miles north-west of Chandler's Ford, in Hampshire. From the centre of Knapp to the outskirts, we cover gutter sealing for every kind of property. Across Hampshire, we cover 683 places, Knapp among them. Southampton is on our list too, about 7 miles from Knapp.
Jobs for gutter sealing in SO51 is quoted and booked the same way as anywhere else. We also cover the places around Knapp: Ampfield (1 mile south-west), Broadgate (1 mile south-east), Gosport (1 mile south-west), Lower Slackstead (1 mile north-west) and Crampmoor (2 miles south-west). Within a short drive, we also cover Winchester (6 miles north-east), Eastleigh (5 miles south-east), Fareham (15 miles south-east), Andover (14 miles north), Totton (7 miles south-west) and Hedge End (8 miles south-east).
Landmarks near Knapp
Locally, jobs take us to homes and businesses close to White Horse Public House and the streets around them. The closest station to Knapp is Chandlers Ford station, roughly 2.5 miles south-east of the centre. Other landmarks nearby include Romsey Community Hospital (2.9 miles south-west) and King Johns House (3.7 miles south-west). Green spaces nearby include Emer Bog and Baddesley Common.
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Look along the fascias for open joints
- Watch the wall under the gutters for staining
- Deal with a drip before winter
- Check the gutters during heavy rain
Make sure downpipes are not blocked so the gutter can drain. Blockages push water back along the gutter.
Split sealant on fascias and trims lets water in behind. Resealing early protects the boards and the wall below.
More services for Knapp
Why act early in Knapp
Water from a leaking joint hits the same spot every time. Over time that can stain brickwork, mark render and encourage damp, so it’s worth sealing early. Around Knapp, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why us?
- Tidy, careful work
- Every job guaranteed for a year
- Domestic, commercial and hotel work
- Colour agreed with you before any work starts
Take a look at how sealant jobs are priced and our reviews.
Your questions about gutter sealing in Knapp
Can you do gutter sealing in Knapp?
Yes. Our work covers London and the South East, and Knapp is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Do you work for landlords with property near Chandlers Ford station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or email us with the details for a clear quote.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Can you fit new guttering?
Replacement isn’t our trade. We’ll tell you if the gutter needs replacing.
Do you offer different sealant colours?
We help you choose a colour that suits. The choice depends on the product the joint needs.
Where do you work from?
We work from Crawley. Our applicators cover Knapp, along with the rest of our area.
Can you reach high gutters?
That depends on the building. Let us know the height and the ground below and we’ll confirm what’s needed.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
The process
All our tools and materials come with us in the van. Once we have agreed what’s being done, we protect the area and start. It normally takes an hour or two for a few joints, longer for a full run. Somewhere as small as Knapp, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we trace the drip and check the gutter is not damaged.
- The old sealant and dirt are cleaned out of the joint.
- The joint is dried before sealing.
- A gutter sealant is applied to the joint.
- The gutter is checked and debris around the joints cleared.
Before we arrive
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.