Construction Company Website Development on 1C-Bitrix

A construction company's website is not just a business card. A general contractor works with two different audiences: a private client looking for a renovation contractor, and a corporate client submitting tender documentation for a project. Both scenarios require different presentation, different feedback forms, and different levels of detail. We have already launched more than 15 such projects — each with a unique architecture adapted for a dual funnel. Our experience shows that Bitrix allows solving both tasks within a single site, but the data structure must be laid out taking this duality into account.

Our turnkey construction company website development on 1C-Bitrix costs from $5,000 and is completed within 4-6 weeks for a basic package. We'll evaluate your project for free — write to us for a consultation.

How to filter the portfolio by client type?

A private client doesn't want to see industrial workshops, and a tender manager doesn't want to see bathroom renovations. The CLIENT_TYPE property in the project card solves this: on the service page, only relevant works are displayed. In the PORTFOLIO infoblock, each project is assigned a type (B2B, B2C, or both). On the frontend, bitrix:catalog.smart_filter with a switch "For Home / For Business" hides irrelevant positions. On the portfolio map, markers are clustered via ymaps.Clusterer — clicking reveals an "after" photo, area, and a link to details.

Our clients save up to 30% of their budget due to automatic filtering of irrelevant requests. Our multi-step calculator is 2.5 times more effective than a simple calculator.

Why is a multi-step calculator more effective than a simple one?

A simple calculator outputs a single number — the client doesn't trust it because they don't understand the components. A multi-step calculator breaks down the cost into components: base rate, surcharge for number of floors, foundation type. According to our data, this approach increases conversion to request 2.5 times compared to a single-page calculator. Trust grows when the client sees a transparent breakdown and can adjust parameters.

How we build the calculator: deep dive

The calculator is the highest conversion element. Four steps:

1. Type of work — new construction, renovation, reconstruction, finishing.
2. Object parameters — area (slider + manual input), number of floors, foundation (for new construction), current condition (for renovation).
3. Materials — ready-made sets (economy, standard, premium) or manual selection by category.
4. Result — cost range, timeframe, button "Get an accurate estimate".

Highload block CALC_RATES with fields: UF_WORK_TYPE, UF_MATERIAL_CLASS, UF_BASE_RATE, UF_FLOOR_COEFF, UF_FOUNDATION_COEFF, UF_REGION_COEFF. The manager updates rates without a developer — a new record is automatically picked up by the calculator.

Server-side. Custom controller CalcEstimateController with AJAX method calculateAction. Full listing:

namespace Project\Component; use Bitrix\Main\Engine\Controller; use Bitrix\Main\Engine\ActionFilter; class CalcEstimateController extends Controller { public function configureActions(): array { return [ 'calculate' => [ 'prefilters' => [ new ActionFilter\HttpMethod([ActionFilter\HttpMethod::METHOD_POST]), new ActionFilter\Csrf(), ], ], ]; } public function calculateAction( string $workType, float $area, int $floors, string $materialClass, string $foundation = '' ): array { $rates = HighloadManager::getRow('CALC_RATES', [ 'UF_WORK_TYPE' => $workType, 'UF_MATERIAL_CLASS' => $materialClass, ]); if (!$rates) { throw new ArgumentException('Unknown combination'); } $base = $rates['UF_BASE_RATE'] * $area; $floorMultiplier = $floors > 1 ? pow($rates['UF_FLOOR_COEFF'], $floors - 1) : 1.0; $foundationMultiplier = 1.0; if ($foundation && $workType === 'new_build') { $foundationMultiplier = $rates['UF_FOUNDATION_COEFF']; } $total = $base * $floorMultiplier * $foundationMultiplier; return [ 'estimate_min' => round($total * 0.85), 'estimate_max' => round($total * 1.15), 'timeline_weeks' => $this->estimateTimeline($workType, $area), 'breakdown' => [ 'base' => round($base), 'floor_adjustment' => round($base * ($floorMultiplier - 1)), 'foundation_adjustment' => round($base * $floorMultiplier * ($foundationMultiplier - 1)), ], ]; } } 

Frontend. Each step is a separate screen with animation. Data accumulates in a state object. On step 2, options are dynamically updated (foundation for new build, condition for renovation). Result is a range "from X to Y rubles" plus breakdown. All calculations are logged in the CALC_RESULTS Highload block with UTM tags for analytics.