Custom Quote & Proposal Software for UK Businesses

If your team still rebuilds the same quote in Word or Excel every week, you already know the problem. Manual quoting eats hours, lets pricing and formatting mistakes through, and loses deals when a response takes three days instead of three hours. Two reps send different prices for the same job. Proposals sit in shared folders with no clear “active” version, discounts go out that nobody signed off, and the manager who approves big deals becomes a bottleneck the moment they go on holiday.

Most teams reach for an off-the-shelf proposal tool at that point, and for many that is the right call. A fair number then find the tool bends their process to fit its template, charges per user every month, and stops short exactly where their work gets specific.

I build custom quote and proposal software for UK businesses that have hit that wall: pricing, approval rules or integrations too particular for a generic tool to handle without workarounds. ByteGears is senior-led, so the person you talk to about your quoting is the person who builds it. If an off-the-shelf or open-source option would serve you better, I’ll say so.

Where off-the-shelf quote tools fall short

SaaS proposal tools do the common case well: a branded template, a line-item table, an e-signature, a notification when the client opens it. If that is all you need, buy one. The friction starts when your quoting has logic the tool cannot express:

• Per-user pricing that scales the wrong way. Most platforms charge per seat per month, and several keep approval workflows, CRM sync or premium support for higher tiers. The cost grows in a straight line with your sales team and tends to drift up at renewal.
• Approval workflows that only do straight lines. Tools support “discount over X% goes to a manager”. Rules like “above 15% goes to the sales manager, above 25% to the finance director, and engineered products always need a technical sign-off” do not fit, so approvals get chased over email anyway.
• One-way CRM sync. Many integrations pull customer data in but don’t push proposal status back, and they only map standard fields. Your custom CRM fields never reach the proposal.
• Quotes that stop at the quote. An accepted quote rarely lands in Xero or QuickBooks on its own, so line items, customer details and discounts get typed in twice.
• Static pricing. Product costs sit cached in the quoting tool. When your ERP or a supplier changes a price, the quote doesn’t know until someone refreshes it by hand.
• Configurable products. Tools built around good-looking proposals struggle with interdependent options and bill-of-materials pricing.
• Vendor branding and lock-in. Lower tiers stamp the vendor’s logo on proposals your customers see, and data sits in a proprietary format, so leaving means re-keying or losing history.

The bigger costs sit outside the licence: the shadow spreadsheet your team keeps beside the official tool, the discounts that slip through, and the audit trail an FCA review or ISO assessor wants that isn’t there.

What I build instead

I start by mapping how a quote moves through your business today, including the steps people only do because nothing supports them. Then I build the software around that flow.

• You own it outright. The code, the data and the database are yours, in PostgreSQL with clean CSV and JSON exports. No per-user fees and no renewal increases.
• Your approval rules, encoded. Routing by deal size, customer type, region, product or margin threshold. Parallel approvers, escalation when someone is away, discount authority set per person, and auto-approval when the conditions are clearly met.
• Integration both ways. A proposal pulls live customer and pricing data from the systems you already run, and a signed quote updates the CRM and converts to an invoice or a project.
• UK GDPR from the first release. UK hosting, role-based access, encryption, full audit trails and retention rules you control.
• Room to grow. A new product line, approval rule or integration later doesn’t mean rewriting half the system.

What goes into a quoting system

The feature set depends on your business. Most projects draw from this list:

1. A proposal builder with branded templates, an approved clause library and merge fields, so reps aren’t starting from a blank page. Sections show or hide by customer type, product or region.
2. A pricing engine for your discount rules, VAT treatment, tiered and volume pricing, customer contract rates, cost-plus-margin and multi-currency.
3. Approval workflows with rule-based routing, reminders on anything sitting unactioned, and the right number of steps for your business, so a junior rep can’t email out a 40% discount.
4. A client-facing view where customers read, comment on, accept and sign proposals without an email chain, with quote expiry enforced so nobody signs a stale price.
5. Engagement tracking that shows when a proposal was opened and which sections the client read, which helps most on long consultancy and engineering proposals.
6. Version tracking, so there is always one active quote and a history of what changed and who changed it.
7. Quote-to-invoice and quote-to-project conversion into Xero, Sage, QuickBooks or your project system.
8. Reporting on win rate, time-to-quote, margin by client and rep, and where approvals stall, exportable to Excel or your BI tool.
9. An audit trail of who created, edited, sent, viewed, approved and signed each proposal, with timestamps and signer evidence.
10. Role-based access, with separate permissions for sales, approvers, finance and admin, and control over who sees cost and margin.

A mobile layout for quoting and signing on site is easy to add where your team works in the field. I’ll tell you which of these belong in the first release and which can wait.

How a project usually runs

1. First Gear, five days, £495. I go through your quoting process with the people who build, approve and price quotes, then put together a prototype quote builder loaded with your real products and customers. It comes with a one-page plan that fixes the build price. The £495 comes off the build if you go ahead, and you keep the prototype and plan either way.
2. The core build, live within a month. Quote creation, branded templates, PDF output, signing and a link to your CRM. For many teams this is enough to go live.
3. Later phases, about a month each, where needed. Rule-based approval routing, two-way CRM and accounting sync, engagement analytics, and any industry-specific logic. Each phase has its own fixed price.
4. Data and migration run alongside the build. Cleaning the customer and product data is the part teams underestimate: duplicate accounts, missing addresses, and pricing rules that only exist inside a spreadsheet formula. Then come your historical quotes and templates, and a round of testing with real proposals, including multi-currency and odd discount combinations, before you switch over.
5. After launch, a 30-day fix guarantee and the first month of hosting included, then an optional monthly plan.

What it costs

Owning the software costs more at the start than a proposal tool subscription. Most of my builds land between £2k and £10k, with the price fixed at the end of First Gear and never billed by the hour. A focused core of quote creation, templates, e-signature and one CRM integration usually fits in a single build. Rule-based approvals, two-way accounting sync and analytics come as later phases, each fixed-price. Deep ERP integration and complex conditional pricing are what push a project into more phases.

The case for a build is the shape of the cost over time. SaaS proposal tools charge per user per month, so the bill grows with your team and tends to creep up at renewal. A build is a one-off cost plus an optional monthly hosting plan that doesn’t change with headcount. Whether and when that overtakes a subscription depends on your team size and how long you’ll run the system, and I’ll work through it on your numbers before you commit.

Where this tends to work well

Custom quoting software earns its keep when pricing has real complexity, approval has real overhead, or the proposal has to plug into systems an off-the-shelf tool can’t reach. Sectors where that comes up often:

• Consultancies and professional services, where every engagement needs a scope of work, resource costing against bill rates, multi-partner sign-off, and a proposal that doubles as the contract.
• Engineering firms, where a technical proposal carries method statements, drawings and compliance documents alongside the price, and pricing decisions are documented for ISO 9001.
• Construction and trades, where a quote itemises labour, materials, plant and subcontractor markup, varies by site, needs sign-off from the project manager and finance, and then becomes purchase orders and staged invoices.
• AV and systems integrators, where a quote combines an equipment list priced from distributor feeds with design, installation and programming labour, and kit prices move between quote and order.
• IT resellers and managed services, with recurring revenue lines, tiered SLAs, bundles, and partner margin checked against current cost data before a competitive bid goes out.
• Manufacturing and wholesale, with configurable products, minimum order quantities, lead times, and a different catalogue, volume discount and contract terms for each customer.
• Financial services and insurance, where an FCA review expects the approval trail to show who signed off which price and why.
• Logistics and 3PL, where rates depend on origin, destination, weight and service level, and annual contracts carry escalation triggers.
• Software and SaaS firms, with multi-year deals, usage-based and per-seat pricing, legal approval on large contracts, and renewals to re-quote.

If your firm writes long tender responses from a content library rather than priced quotes, proposal management software is the closer fit. If a SaaS pilot would leave your team building spreadsheets around the gaps, tell me what you’re working on and I’ll tell you whether a build is worth it.

Common Questions About Custom Quote & Proposal Software

How does the cost compare to a SaaS proposal tool? ›

A build costs more up front than a monthly subscription. What you get for that is no per-user fee and no renewal rise. Proposify, PandaDoc and similar tools charge per seat per month, and approval workflows or CRM sync often sit on a higher tier, so the bill grows with every rep you hire. Most of my builds land between £2k and £10k, with the price fixed after First Gear, then an optional hosting plan. Whether that beats a subscription depends on your team size and how long you'll run the system, and I'll work it through with you on your real numbers.

When is an off-the-shelf tool the better choice? ›

Often. If your pricing is simple, you send a modest number of quotes a month, most need one sign-off at most, and your proposals follow a predictable format, Better Proposals or Qwilr will do the job for far less effort. Odoo is an option if you're happy to host and configure it yourself. A custom build earns its place when your pricing logic, approval rules or integrations are too specific for a template, and the tell is a spreadsheet your team keeps running beside the tool.

What's a realistic development timeline? ›

First Gear takes five days and gives you a working prototype of your quote builder on your own data. The core build, covering quote creation, branded templates, PDF output, e-signature and one CRM connection, then goes live within a month. Rule-based approvals, two-way accounting sync and reporting follow as further phases, each about a month and each with its own fixed price.

Can you integrate with our CRM and accounting software? ›

Yes. I build to the published APIs of Salesforce, HubSpot and Pipedrive on the CRM side, and Xero, Sage, QuickBooks and FreeAgent for accounts. Older or in-house ERP systems and distributor price feeds can be reached by API, scheduled file exchange or a direct database link. Sync runs both ways where it helps, so a signed quote updates the CRM opportunity and an accepted quote becomes an invoice without anyone typing the line items in again.

Are e-signed quotes legally binding in the UK? ›

Yes. Electronic signatures are admissible in evidence under the Electronic Communications Act 2000, and the UK eIDAS Regulation sets out the advanced and qualified types. I integrate an established e-signature provider rather than building one, because the provider holds the signer evidence and the audit certificate. The rest of the system is built to UK GDPR and the Data Protection Act 2018, with role-based access, encryption in transit and at rest, and UK hosting. Retention rules can match the six years HMRC expects company records to be kept.

Who owns the software, and what happens after launch? ›

You own the code, the data and the database. Data sits in PostgreSQL with CSV and JSON exports, so you're never stuck in a vendor's schema. Every build has a 30-day fix guarantee and the first month of hosting free, then you choose an optional monthly plan or host it yourself. Training is part of the build and runs by role, because sales, approvers, finance and admins each use the system differently.