Desktop & Laptop Upgrades, Repairs & Diagnostics

Bespoke desktop upgrades, selected laptop work and practical diagnostics

Looking to upgrade an existing desktop, replace a failed component, improve performance, or understand what is wrong with your system? ConstructPC provides clear diagnostics, practical upgrade advice and carefully quoted repair options from our Northwich workshop, supporting customers across the North West and beyond where practical. Enter your postcode when submitting an enquiry to receive immediate service-area guidance.

ConstructPC’s upgrades, repairs and diagnostics are primarily offered across Cheshire, Greater Manchester and the wider North West by appointment.

Handover, drop-off, collection or workshop slots are confirmed before work goes ahead.

Desktop work can include component upgrades, part replacements, cooling improvements, case swaps, rebuilds and BIOS or firmware support where appropriate. Laptop work is limited to suitable modular upgrades and maintenance, such as RAM, SSD/storage, batteries, thermal maintenance and, where parts are available and the design allows it, screen or full display assembly replacement.

Our Honesty Policy: We treat your machine like our own. If your system is too old, too damaged, or simply not financially sensible to repair or upgrade, we will tell you clearly before you spend unnecessary money.

Just looking for a routine clean, thermal paste refresh, software health check or general system refresh? Head to our Ready-To-Go Services page for fixed-price maintenance packages with online checkout.

What We Can Help With

For Your Desktop PC:

  • Graphics card upgrades: replacing older desktop GPUs, checking power requirements, fitting the new card and handling driver clean-up where appropriate.

  • Power supply replacements: fitting suitable branded power supplies to support new or existing components safely.

  • Cooling Overhauls: Fitting high-performance AIO liquid coolers, premium air towers, or performance chassis fans to lower system temperatures.

  • Case Swaps & Rebuilds: Safely transferring your existing components into a brand-new, modern case with clean cable routing.

  • Component Replacement: Diagnostic testing and clean replacement of failing desktop parts (such as motherboards, processors, or desktop fans).

  • BIOS and firmware updates: desktop motherboard BIOS updates, CMOS resets and configuration checks where appropriate for compatibility, stability or upgrade support.

For Your Laptop:

  • Memory upgrades: expanding laptop RAM where the memory is removable and supported by the device.

    • Storage upgrades: replacing or adding compatible SSD storage, including NVMe or SATA drives where the laptop design allows it.

    • Battery replacement: replacing failing or degraded internal laptop batteries where safe access, part availability and chassis design allow it.

    • Screen or display assembly replacement: selected laptop screen, panel or full display assembly replacement where suitable parts are available and the design allows safe replacement.

    • Thermal maintenance: internal dust cleaning, fan/vent cleaning and thermal paste refreshes where suitable for the model.

    • Software, BIOS and driver support: Windows troubleshooting, driver checks, BIOS/firmware update advice and general system health checks where appropriate.

Please note: Many modern laptops use soldered memory, soldered storage, glued assemblies or compact designs that limit safe upgrade and repair options. Send your exact model number and we will confirm what is realistically possible before quoting.

Service Pricing & Boundaries

How bespoke upgrade and repair pricing works:

• Flat-rate fitting labour from £50: suitable for many straightforward desktop upgrades and selected modular laptop replacements. Parts, replacement components and specialist items are quoted separately.

• Larger jobs, unusual systems, case swaps, rebuilds, fault tracing and multi-part upgrades are quoted individually before any work begins.

• No parts are ordered and no physical work begins until the agreed scope, pricing and payment terms have been confirmed in writing.

• If a device needs work outside our current scope, such as board-level repair, micro-soldering, liquid-damage reconstruction, CPU/GPU rework, trace repair or complex electronic repair, we will explain this clearly. Where a paid diagnostic only confirms that the required repair is outside our scope, we will waive or refund that diagnostic fee.

What we do not currently offer

ConstructPC does not currently offer board-level repair, micro-soldering, liquid-damage reconstruction, CPU/GPU reballing, trace repair, console repair, handheld repair or complex electronic repair unless expressly agreed in writing.

If your device needs that level of work, we will say so clearly rather than attempting an unsuitable repair.

Flexible Payment Options

Upgrade and repair costs can vary depending on the device, parts required and agreed scope of work. Where available, secure payment options may include major cards, Apple Pay, Google Pay, Klarna, PayPal Pay in 3, PayPal Credit or bank transfer.

Klarna, PayPal Pay in 3 and PayPal Credit are subject to provider availability, eligibility, status, approval and their own terms. PayPal Credit may offer 0% interest for 4 months on eligible single transactions of £99 or more, unless another promotional offer applies.

Final payment options will be confirmed before any order is accepted or work begins.

90-Day Workmanship Guarantee

Upgrade, repair and maintenance work includes a 90-day workmanship guarantee for the specific work completed. If the same issue returns because of the original workmanship, ConstructPC will inspect and, where appropriate, rectify the workmanship issue without an additional labour charge.

Where parts are supplied directly by ConstructPC, support can also be provided with applicable manufacturer warranty claims. Parts supplied by the customer may be handled differently, depending on their condition, source and warranty status.

This does not replace your statutory rights or any applicable manufacturer warranty. Full terms apply. View our Returns & Warranty Policy here.

Service area & travel

ConstructPC is based in Davenham, Northwich, and primarily supports customers across Cheshire, Greater Manchester and the wider North West, with enquiries from further afield considered where practical. Enter your postcode on any enquiry or booking form to receive immediate guidance based on your approximate distance from our workshop.

  • Locations up to 30 miles from our workshop fall within our standard service area. No additional mileage surcharge will normally apply to the agreed collection, personal handover or delivery arrangement.

    All enquiries and bookings remain subject to service suitability and workshop availability.

  • Locations over 30 miles and up to 50 miles fall within our extended service area and can usually be accommodated where practical.

    Where collection, personal handover or delivery by ConstructPC is required, an additional travel charge will apply. Acceptance remains subject to the nature of the work, workshop availability and the agreed logistics.

  • Enquiries from more than 50 miles away are still welcome but are not automatically accepted.

    ConstructPC will review the journey, service requirements, scheduling and handover arrangements before confirming whether the work can proceed. If accepted, an additional travel charge will apply and will be agreed before payment is taken or work begins.

Distances shown by our postcode checker are approximate straight-line distances used for initial service-area guidance. Any travel charge will be based on the actual agreed journey and arrangements.