Taking care of North Wales & the North West
The Corva help centre

A helpful answer is a good start.

Search our answers about booking, costs, boilers and property care. Choose a service to narrow things down.

Emergency plumbing

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Can you attend today?

Call us to check. We prioritise urgent problems and will confirm availability and an expected arrival window before booking.

What does an emergency call-out cost?

The charge depends on timing, location and the work needed. We explain the call-out charge before attendance and quote separately for additional parts or work.

Is a gas leak a plumbing booking?

No. For a suspected mains-gas escape, call the National Gas Emergency Service on 0800 111 999 from a safe place. Do not wait for a website reply.

Will my online request send an engineer automatically?

No. Your online request is saved in the office inbox for review. It does not dispatch an engineer. For urgent plumbing or heating help, call the team to confirm availability and charges.

Can you give an exact arrival time?

We discuss an expected arrival window after reviewing the job and availability. Travel and preceding emergency work can affect timing, so a website enquiry is not an arrival guarantee.

Will the call-out fee cover every repair?

Only the work and time agreed for that visit. A fault may need replacement parts, more labour or a return visit. We explain those costs before further work is approved.

What if the leak is behind tiles or under the floor?

The engineer will explain the access needed to investigate it. Opening-up and reinstatement need to be agreed, and damage or defects may only become visible once access is available.

Boiler servicing

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How often should I book a boiler service?

Follow your manufacturer’s instructions. For most domestic gas boilers this is annually; it may also be a condition of the manufacturer’s warranty.

Is a service the same as a landlord gas safety check?

They are different appointments. A service maintains the boiler; a landlord gas safety check examines the relevant gas appliances and produces a separate safety record. Ask us to arrange both together.

Can you service a boiler that is not working?

Please book a boiler repair or diagnostic visit first. We need to assess the fault before confirming whether a routine service is suitable.

How long does a service take?

The time varies with the boiler, access, condition and manufacturer’s procedure. We allow for the appliance details you provide and will explain if investigation or extra work is needed.

Should I book in summer or winter?

You can arrange servicing throughout the year. Planning before the busiest heating season can give you more flexibility, but available appointments should always be checked with the team.

Can servicing prevent every breakdown?

No. Servicing helps maintain the appliance and can identify concerns, but it cannot guarantee that a component will not fail later.

Do you service oil or LPG boilers?

This site’s confirmed servicing offer is for domestic natural-gas boilers. Other fuels require the appropriate competence and are not offered as confirmed bookings here.

Boiler repairs

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Can you repair my boiler brand?

We work on a range of domestic gas boilers. Send us the make and model so we can confirm suitability and parts availability.

Will you repair it on the first visit?

Some faults can be resolved during the initial visit; others need a specific part or additional investigation. We explain this as soon as we know.

Should I keep resetting the boiler?

Follow the manufacturer’s instructions. If it repeatedly locks out, stop repeatedly resetting it and arrange a qualified engineer to investigate.

Can you tell me the failed part from a fault code?

A code helps focus the investigation, but several causes can produce similar symptoms. We do not recommend buying a replacement part before the fault has been assessed.

What if parts are no longer available?

We explain any availability problem and discuss practical options. Depending on the appliance’s condition, that might include an alternative approved repair or a replacement quotation.

Is it worth repairing an older boiler?

That depends on the fault, repair cost, overall condition and parts availability. We explain those factors so you can compare repair with a new installation.

Should I contact the manufacturer first?

If you have an active manufacturer’s warranty, check its claim procedure first. Unauthorised work or certain repair arrangements may affect the terms.

Which boiler brands do you install?

Our current online range matches MyNextBoiler: Viessmann Vitodens 025-W and 050-W, Ideal Heating i Mini2, Worcester Bosch Greenstar 4000 and Greenstar 8000+. The final choice depends on your home, hot-water demand, installation details and product availability.

Can I get an instant fixed price?

Yes. Answer the online quote questions to compare prices for eligible standard replacements. More complex installations and unknown details follow a manual-review route. Prices include VAT and the stated standard installation scope. A survey and written quotation confirm the specification and price before work is agreed.

What warranty will I get?

Warranty length and conditions depend on the exact boiler and installation package. Your written quote will identify the applicable manufacturer’s terms.

Can a new boiler go in a different room?

Possibly, but it changes the survey and scope. Flue routing, condensate drainage, gas supply, water pipework and access all need to be assessed before a new location is agreed.

Will I need new radiators too?

Not automatically. We assess the existing heating system and explain any recommended changes. New radiators should only form part of the installation if included in your quote.

How long will installation take?

It depends on whether the job is a straightforward replacement, a system conversion or a relocation. The expected programme is discussed after the survey.

Can you guarantee lower energy bills?

No specific saving is promised. Bills depend on the existing system, controls, home, usage and energy prices. We focus on specifying and commissioning a suitable installation.

Plumbing repairs

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Do you take on small jobs?

Yes. We welcome enquiries for individual repairs as well as larger plumbing projects.

Can you fit taps or a toilet I have supplied?

Often, yes. Send the product details and a description of the existing installation so we can check suitability.

Is decorating or tiling included?

Only if it is specifically included in your quote. We will flag any expected access work and making-good requirements before starting.

Do you carry every tap or toilet part?

No. Some fittings use model-specific cartridges, valves or seals. We may need to identify and order a compatible part before completing the repair.

Can you trace a hidden leak?

We can investigate within an agreed scope. Access may require opening up surfaces, and the exact source is not always apparent at the first inspection.

Do you replace macerators or pumps?

We welcome enquiries. Provide the make, model and installation details so we can review the scope, access and replacement requirements.

Can I add another job when the engineer arrives?

Please mention extra work as early as possible. It depends on the time available, materials and the agreed authorisation; it cannot always be added to the same visit.

Heating & radiators

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Can you replace one radiator?

Yes. We can quote for a single replacement or a wider upgrade, including any valve and pipework changes needed.

Do cold radiators always need a power flush?

No. Air, valves, controls, balancing or circulation can all affect performance. We investigate before recommending system cleaning.

Can I supply my own radiators?

Yes, subject to suitability. Please provide the sizes, outputs and connection details before we agree the installation.

Can you install a towel radiator?

Yes, subject to the installation details and suitability. Tell us the location, dimensions, connection positions and whether the unit is water-heated or includes an electrical element.

Will a larger radiator always fix a cold room?

Not necessarily. Poor circulation, controls or other factors can limit performance. We assess what is causing the issue before recommending a change.

Do you repair zone valves and circulation problems?

We welcome those enquiries. Describe which heating or hot-water zones are affected so we can arrange an appropriate investigation.

Can you reuse my existing radiator valves?

It depends on their condition and compatibility. The quote should identify whether they will be retained or replaced.

Bathrooms & showers

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Can you replace a shower without a full bathroom refit?

In many cases, yes. We assess the existing fittings and access before confirming the work.

Will existing tiles be affected?

They may be, particularly when a tray, valve or concealed pipework is removed. We discuss that risk and the making-good scope in your quote.

Do you arrange every trade?

The agreed scope varies by project. Your written quote will identify who is responsible for electrical work, tiling and other finishes.

Can I keep my current bathroom layout?

Often, yes. Retaining locations can simplify some work, but the existing supply, drainage and condition still need to be reviewed.

Who buys the fittings?

Either arrangement can be discussed. Your quotation should identify each supplied item and who is responsible for ordering, compatibility, damage and product warranty.

Can you guarantee existing tiles will survive removal?

No. Access to a shower tray, concealed valve or pipework can disturb tiles and finishes. We explain the expected risks and the agreed making-good scope.

How are larger projects paid for?

Payment stages are agreed in the written quotation. They may reflect progress such as first-fix completion and final handover, rather than one assumption for every project.

Heating system cleaning

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Will a power flush fix every cold radiator?

No. We assess the cause first because some heating problems require a repair or adjustment instead.

Is every system suitable?

No. The age, condition and construction of the system influence the appropriate cleaning method.

Can cleaning be included with a boiler installation?

Yes, where appropriate. The installation quote will state the cleaning method and any additional filter or treatment included.

Is power flushing the only way to clean a system?

No. The appropriate method depends on the installation and its condition. The engineer should explain why a particular method is being proposed.

Will cleaning increase every radiator’s output?

It may help where contamination restricts circulation, but it cannot correct every sizing, control, valve or insulation issue.

Does the quote include a magnetic filter?

Only when it is specified. Ask the team to identify any filter and treatment in the written scope.

Can you give a fixed price without seeing the system?

Basic details can help with an initial discussion, but system size, access and condition may need review before the final scope and price are confirmed.

Landlord gas safety

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Is a boiler service also a CP12?

No. A service and landlord gas safety check are different. Ask for both when booking if you need both records.

What if an appliance has a safety issue?

The engineer will explain the findings and follow the appropriate safety procedure. Remedial work is separately agreed; a successful result cannot be guaranteed in advance.

Can you coordinate with my tenant?

Yes, once you provide authorised contact and access details. The appointment must be agreed; a website request alone does not secure access.

Can the check be arranged before the existing due date?

There are circumstances where an annual check can be completed up to two months early while retaining the original deadline. Check the HSE guidance and the property’s records before relying on that arrangement.

Does a CP12 cover the whole property’s maintenance?

No. A gas safety record is not a general property condition report and does not replace ongoing maintenance or other responsibilities.

What if the tenant cannot provide access?

Tell the team promptly so another arrangement can be discussed. Landlords should retain evidence of reasonable access attempts; forced entry is not an acceptable default.

Can you send the record to an agent?

Yes, when the authorised recipient and contact details are agreed. The landlord or agent remains responsible for distributing and retaining the records as required.

Landlords & letting agents

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Can you work to an agent’s approval limit?

We can agree an instruction and authorisation process. Any work beyond the agreed scope or limit needs approval.

Do you support empty properties between tenancies?

Yes. We can discuss plumbing repairs, checks, radiator changes and bathroom work around the next tenancy date.

Can you manage an entire portfolio?

We review locations, job volumes and the required response before agreeing the service. Contact us to discuss the portfolio.

Can you use our job or purchase-order references?

Provide the reference with the instruction and tell us how it should appear on the relevant paperwork. Any special invoicing requirements should be agreed before work starts.

Can tenants book directly?

That depends on your authorisation arrangement. We need a clear route for approving the visit and charges before accepting work on someone else’s behalf.

Do you offer fixed response times for portfolios?

Only if a specific arrangement has been reviewed and agreed. Website wording does not create a response-time commitment for an entire portfolio.

Can you quote for void-property works from a list?

A list helps start the discussion. More involved work, unknown condition or layout changes may require a survey before a firm scope and quotation can be provided.

Caravan & holiday parks

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Can you refurbish a toilet or shower block?

We welcome enquiries for the plumbing and an agreed refurbishment scope. A site visit is needed to confirm condition, layout and responsibilities.

Can work be planned outside the main season?

Yes. Tell us your opening dates and any periods when facilities must stay available. We will discuss a suitable programme.

Do you offer caravan LPG checks?

LPG work requires the correct specific qualifications. Please tell us the fuel and appliance type; no LPG work is booked or promised through this website.

Can a refurbishment be completed in phases?

Potentially. We need to review the layout and service connections, the facilities staying in use and the practical shutdown requirements before agreeing a phased programme.

Can existing sinks or toilets be reused?

They can be considered if suitable and in serviceable condition. Removal risks, compatibility and responsibilities should be clear in the specification.

Do you undertake drainage outside the building?

Only where that work has been expressly assessed and included. Internal plumbing does not automatically include external excavation, sewer works or drainage by another contractor.

Can you quote before the off-season?

Yes, an early enquiry is useful. Provide the scope and dates so we can discuss a survey, lead times and a realistic programme.

Housing associations

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Are you available for subcontract packages?

We welcome suitable enquiries. Scope, locations, workload and contract conditions are reviewed before a commitment is made.

Can you provide procurement documentation?

Contact us for the relevant registration, accreditation, insurance and health-and-safety information for the proposed work.

Do you undertake commercial gas or oil plant work?

These are outside our current core offering. Our gas scope is domestic natural gas; specialist plant work is not offered on this page.

Can you support a main contractor?

We welcome suitable subcontract enquiries. Locations, work types, expected volumes and contract conditions need to be reviewed before capacity is committed.

Can you work to our response targets?

Send the priorities, expected volumes, locations and response requirements with your enquiry. We review capacity and the proposed service standards before agreeing a contract or attendance commitment.

Can you work with our resident procedures?

Share the procedures and training or reporting requirements. We review them as part of agreeing the work and mobilisation arrangements.

What supplier information can we request?

Relevant business information, insurance evidence, Gas Safe registration, SafeContractor accreditation and work-specific health-and-safety documentation can be discussed for the proposed package.

Councils & public sector

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Can you respond to a specification?

Yes. Send the scope, deadlines and required supplier information so we can assess a suitable response.

Are all mechanical services included?

No. We confirm individual work categories and competence. Commercial gas, oil and specialist plant services are not included in our core offering.

Can you supply evidence for supplier checks?

We can provide relevant business, insurance, Gas Safe and SafeContractor information for review.

Can you price from a schedule of works?

A schedule can be reviewed, but assumptions, quantities, property conditions and contract terms need to be clear. A survey or clarification may be needed before pricing is final.

Do you offer all mechanical disciplines?

No. This enquiry route focuses on suitable plumbing and domestic natural-gas heating work. Each proposed category must be matched to the required competence.

Can you attend a site meeting before quoting?

We can discuss a suitable survey or meeting once the location, purpose and scope are known. Please include the deadline in the enquiry.

How do we begin supplier onboarding?

Send your organisation’s supplier checklist, the procurement reference and the proposed work. We can review the required evidence and appointment process with your team before any instruction is accepted.

Property maintenance

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Can you combine several small repairs?

Yes, where practical. Send the complete list before booking so we can allow suitable time and prepare materials.

Do you work in occupied properties?

Yes. We discuss access, disruption and any additional needs before arranging the work.

Can you agree regular maintenance?

We can discuss a planned schedule and scope. Contact us with the properties and services you need.

Can you inspect a list before carrying out work?

Yes, a survey or diagnostic visit can be discussed where the condition or extent is unclear. The survey scope and any charge should be agreed in advance.

Will one visit finish every item?

Not always. Some items need identification, specific parts, other trades or more time than a single visit allows.

Can you maintain holiday or empty properties?

We welcome suitable enquiries. Provide the access arrangements, operating dates and whether any services are isolated or unused.

Do you offer a general building maintenance contract?

Our confirmed offer centres on plumbing and domestic heating. Other trades and specialist work need their own defined scope and arrangements.

Editorial image of a heating engineer servicing a domestic boiler
Still have a question?

Your property is individual. So is your enquiry.

A general answer is a starting point. Tell us about your property, appliance or proposed project and we can discuss the relevant scope, price and next step.

For urgent plumbing and heating problems, call to check attendance. For a suspected mains-gas escape, get to a safe place and call 0800 111 999.

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